This is a install guide for the Weapon R Secret Weapon Intake for the 2005 Scion tC.

Tools needed:
10mm socket driver
5/16 socket driver
Phillips / Flat Screw Drivers
Vice Grip Wrench


Here is a picture of what is inculied in the Weapon R SW Intake kit.
http://www.scionlife.com/tech/images/intake_tc/1SW.jpg

Start by disconnecting your battery by unhooking the negative battery cable. This will reset the ECU.

1.0 - Remove the stock air intake system.

1.1 - Remove the engine cover by unscrewing the two 10mm bolts holding it down and pulling it straight up. This needs to be done to gain access to the cam air breather tube.

1.2 - Unfasten the clamp holding the intake tube to the top of the air box using a 10mm socket driver, then remove the tube from the top of the air box. Next undo the clamps for gaining access to the air cleaner. Then remove the air cleaner and unplug the MAF sensor from the top of the air box. Remove the top of the air box.
http://www.scionlife.com/tech/images/intake_tc/2SW.jpg
MAF sensor
http://www.scionlife.com/tech/images/intake_tc/3SW.jpg

1.3 Unclip wiring that is connected to the lower part of the air box. Use a small flat head driver to push in on and undo this plastic clip for the wiring.
http://www.scionlife.com/tech/images/intake_tc/5SW.jpg

1.4 Unbolt the three bolts that are holder the stock air box into place. Use a 10mm socket to remove these bolts. The bolt removed closest to the motor on the left side will be used to mount the support bracket for the new intake. Now you can remove the lower air box. Now you can also remove the intake tube that goes into the fender. This is held in place by two Phillips head plastic screws. The bottom plastic screw is hard to get at so just pulling up on the finder piping will allow it to release itself.
http://www.scionlife.com/tech/images/intake_tc/6SW.jpg

1.5 Remove the air breather hose from the cam cover and from the intake tubing. This hose is held in place using small squeezable clamps on each end. Squeeze each clamp and work the tube off of each end.
http://www.scionlife.com/tech/images/intake_tc/7SW.jpg

1.6 Remove the evap system purge valve that is connected to the air intake tube.
http://www.scionlife.com/tech/images/intake_tc/12SW.jpg

1.7 Remove the large squeezable clamp that is connecting the intake tube to the throttle body. Note will need to reuse this clamp will the WR SW intake kit. Use some Vise grips or a adjustable wrench to compress the clamp and then pull the intake tubing off of the TB. Also unclip the smaller air line running above the intake tubing.
http://www.scionlife.com/tech/images/intake_tc/8SW.jpg

1.8 This should be where you’re at, everything removed and ready for the new intake. At this point you may want to zip tie or tape up the evap system purge valve and MAF sensor connecter just to get it out of your way for the new intake install. I used one large zip tie and hooked it to my wiper.
http://www.scionlife.com/tech/images/intake_tc/9SW.jpg

2.1 Install the WR 2.5” to 3.0” adapter to the TB. You will be using the smaller 2.5” part of the adapter to connect to the TB. You will also be reusing the stack clamp that was used on the TB. You can squeeze this clamp all the way together and it then can lock open. Place the clamp on the adapter and then the adapter onto the TB as far down as it can go. There is a knob on the TB to stop it from going too far, make sure to push it down as far as you can and then release the clamp down low on the TB. Pull on it a few time to make sure it doesn’t pull right off or move around.
http://www.scionlife.com/tech/images/intake_tc/10SW.jpg
http://www.scionlife.com/tech/images/intake_tc/11SW.jpg

2.2 Place one of the four clamps WR gave you on the 3” adapter connecting to the TB. Next place the WR SW intake tube into the 3” adapter on the TB. Push it into the adapter as far as you can and then loosely tighten the clamp using a 5/16 socket.
http://www.scionlife.com/tech/images/intake_tc/18SW.jpg

2.3 Place the filter adapter onto the intake tube and place two more the WR clamps on that. Now take the supplied bracket and bend it 3 inches down from the top at a ninety degree angle. Hook this bracket under the filter connector clamp closest to the motor on the left hand side, on the bottom of the intake tube. Screw in the supplied rubber bolt thing into the hole closest to the motor from the spot that one of the stock air intake box bolts where. Line up the bracket and the rubber bolt thing and loosely tighten it down using the supplied lock nut and washer.
http://www.scionlife.com/tech/images/intake_tc/14SW.jpg
http://www.scionlife.com/tech/images/intake_tc/15SW.jpg

2.4 Place the air filter onto the 3” adapter and tighten it down. Make sure everything now has good clearance and make any needed adjustments. Now go back and tighten down all the clamps and nut. Remove the MAF sensor from the stock air box using a small Phillips head screw driver. Reinstall and reconnect the MAF sensor into the new intake tube using the black Hex screws. Install the new WR air bether tube to the intake tube and the cam cover. Use the factory clips on the new air beather tube. Reinstall the engine cover using the two 10mm bolts.
http://www.scionlife.com/tech/images/intake_tc/16SW.jpg

2.5 Reconnect your negative battery cable and double check your work. Make sure you have the intake tube connected very well to the throttle body; it may take some playing around with to get it perfect. You may also want to zip tie the evap system purge valve to some of the air hoses around it so it doesn’t move around, just don’t clamp off the hoses. Weapon R should have had a bracket for the evap system purge valve so it could mount to like the intake tube like stock. I’m going to look into making something for this a let you guys know how it goes. Now step back and take a look at your new wonderful intake.
http://www.scionlife.com/tech/images/intake_tc/17SW.jpg

2.6 After having the battery disconnected your need to do a few things. First reset you windows and moon roof. Turn the car to the on position but do not start it. The windows can be reset by rolling them all the way done and then back, hold them in the up position for a few extra seconds. Do the moon roof the same way, open it fully and hold it there. Try these steps a few times if it doesn’t work at first.

2.7 After having the ECU reset start the car and let it idle for 5 to 10 mins after installing the intake. Also, take it easy on it for the first couple miles so the ECU can pick up on the new air flow from the intake.

Hopefully this helps with the install of this intake.

nice post.

nice..... you should buy a k and n cone filter.. that weapon r one doesn't look too hot....

GREAT POST!!! I am going to print this out and install my intake during part of my Spring Break!! :clap:

oh wait, i'm retarded. where does the silicone tubing hook up too? :P

Thanks!

Good job! Adding this to the tech section. It'll be moved to the FAQ section in a week or so.

is it ok if you just use one of the clamps with the weapon r, instead of the stock one on the tb?

is it ok if you just use one of the clamps with the weapon r, instead of the stock one on the tb?
I don't see that being a problem as long as you done run out of thred on the clamp when tighting it down. I was thinking that was why the Weapon R instructions wanted us to use the stock clamp and thats the way I did mine, but if it works it works. Also make sure to check those clamps for tightness after driving awhile to make sure nothing comes loose.

oh wait, i'm retarded. where does the silicone tubing hook up too? :P

Thanks!
It'll hook up just like the old one you remove, to the intake tube and the cam cover. It's a no brainer once you see it in person.

Thanks for the post man! Great pictures and explanation! :clap: I'll print it before it's removed from the forum. Can't wait to install mine!!! Hope NYC gets some good whether next week, so I don't freeze myself outside installing the intake!

For those of you thinking about changing out to a K&N filter, it should be noted that our Secret Weapon filter outflows the K&N by a wide margin. A few of the board members who came to our BBQ had a chance to see a comparision test between our Secret Weapon, Dragon, and a K&N filter on our new flowbench display. Our current filters are much thicker than our previous Dragon filters that were throwing CEL, and our Secret Weapon Intake has a much better velocity stack design.

The intake was so simple to install and sounds awesome

I wish that I could get a Weapon R Header already I want to order the exhaust and do it in a whole shot.

http://www.coppermine18.com/tc/photos/wrintakeclose.jpg

http://www.coppermine18.com/tc/photos/hoodup.jpg

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is there a difference between "out flowing" and "out filtering" ?

yeah.. so you can flow more air... but can it filter as good?

is there a difference between "out flowing" and "out filtering" ?

yeah.. so you can flow more air... but can it filter as good?

Actually yes their is and the Weapon R does both better than the K&N.

great write-up. i'll most likely be getting me one of these after my coilovers come in.

when first installed my weapon r intake for the tc, i had no damn clue how to fit that bracket it at....

my friend told me to hook it up to the side towards the tip of the filter and wire the bracket to the filter to hold it....


few minutes later i saw your pic, and now it properly installed haha..

when first installed my weapon r intake for the tc, i had no damn clue how to fit that bracket it at....

my friend told me to hook it up to the side towards the tip of the filter and wire the bracket to the filter to hold it....


few minutes later i saw your pic, and now it properly installed haha..



the weird thing is that why is my intake look different from everyones pics????? my sensor is layed to the side and the coolent pipe stick to the other side??? do i have a older model or new one??

when first installed my weapon r intake for the tc, i had no damn clue how to fit that bracket it at....

my friend told me to hook it up to the side towards the tip of the filter and wire the bracket to the filter to hold it....


few minutes later i saw your pic, and now it properly installed haha..



the weird thing is that why is my intake look different from everyones pics????? my sensor is layed to the side and the coolent pipe stick to the opposite side??? do i have a older model or new one??

Which is better weapon r or the k&n Typhoon Cold Air Intake?

Which is better weapon r or the k&n Typhoon Cold Air Intake?

Wow! Great Post, For step 1.6, how do I unbolt that screw on the bottom?

Hey! Awesome instructions :clap: but i was wondering how much does this intake go for? im looking to getting into moding my tc but im not really into spending that much yet..

Hey! Awesome instructions :clap: but i was wondering how much does this intake go for? im looking to getting into moding my tc but im not really into spending that much yet..
www.creativecompacts.com

James (the owner) has some great pricing :)

I just got my kit. The intake pipe is full of metal shavings and crap. How do you get all the junk out of it before installing?

Mine too. I called and he said just to run water through it, and let it dry before installing. I havent installed mine yet, just took it out of the package to check it out.

You may also want to zip tie the evap system purge valve to some of the air hoses around it so it doesn’t move around, just don’t clamp off the hoses. Weapon R should have had a bracket for the evap system purge valve so it could mount to like the intake tube like stock. I’m going to look into making something for this a let you guys know how it goes.

How does having this hose hanging effect the car? What was this hose used for? Should i be concerned or worried about this not being connected? Will this cause me any problems?


sorry for the 1000x questions :P I bought the intake then read about this hose and was like "ohhh crap"

anyone?

I'm not sure what you mean by "What was this hose used for? Should i be concerned or worried about this not being connected? " That hose *does* stay connected. It's actually two hoses. It connects to the evap system purge valve.

ahh i thought in that quote, he stated that there wasnt a connection for it

OMG !!! i just realized that in the kit CC sent me, I recieved 2x 2.5" to 3" adapters and no intake adapter !!!!!!

eeek, the long hose supplied with the kit seems like its 3x too long to fit from the stem on the intake tubing to lil hole that i removed the origional tube on the manifold from. Im 99% sure that my install is wrong. anyone have any more detailed pics or walkthroughs? or idiot proof guides :P

well i spiralled the hose, it seems to work. My car now sounds MUCH louder at idle and when accellerating. it seems to also have a slight whistle

eeek, the long hose supplied with the kit seems like its 3x too long to fit from the stem on the intake tubing to lil hole that i removed the origional tube on the manifold from. Im 99% sure that my install is wrong. anyone have any more detailed pics or walkthroughs? or idiot proof guides :P

Yes, if you read the directions that came with the kit, it says to trim the hose with a razor blade. What I did was measure a few times, give myself some extra slack, like 4-5 inches, and cut. There was an obvious kink in the hose (planned), and I just continued to trim a little at a time, until I had it at the desired length, with no kink, and no excess slack.

well i spiralled the hose, it seems to work. My car now sounds MUCH louder at idle and when accellerating. it seems to also have a slight whistle

This is normal. All aftermarket intakes sound louder; this is due to the pipe being polished, instead of baffled, as well as the airfilter not being enclosed on a box. The whistle was actually always there on your car, but it too is also more pronounced with the polished pipe, non enclosed air filter.

eeek, the long hose supplied with the kit seems like its 3x too long to fit from the stem on the intake tubing to lil hole that i removed the origional tube on the manifold from. Im 99% sure that my install is wrong. anyone have any more detailed pics or walkthroughs? or idiot proof guides :P

Yes, if you read the directions that came with the kit, it says to trim the hose with a razor blade. What I did was measure a few times, give myself some extra slack, like 4-5 inches, and cut. There was an obvious kink in the hose (planned), and I just continued to trim a little at a time, until I had it at the desired length, with no kink, and no excess slack.

you are my hero!!!

Glad to be of help.

heh i think i might have cut too much off... getting sortof a kink in the hose now :P I am a idiot :P. I cut about 6 inches off :P I might be able to fix it with some adjusting

yeah, thats why I recommend leaving extra, and slowly working your way down :) Hope you get it the way it needs to be :P

nice post makes everything step by step for us noob peeps

I just bought the WR PIPE from someone, I ordered a KN filter online. Where can i get the rubber connectors (what size) and what about hose that will go from the pipe to the throtal body (size)?? Thanks guys PM's welcome

those r some good instructions. good pics to go along with it.

OMG !!! i just realized that in the kit CC sent me, I recieved 2x 2.5" to 3" adapters and no intake adapter !!!!!!

you probably figured it out by now (it has been 5 months since u posted this) but if u didnt you can call weaponR @ 650-8778280. I didnt get the mounting bracket that goes behind the filter and i called them. they sent it 2 me for free.

anyone think that there is any risk of hydrolocking on a short ram like this?

anyone think that there is any risk of hydrolocking on a short ram like this?

I'm guessing unless you drive thru one of the Great Lakes, hydrolocking shouldn't be a problem with a SRI.

^^ ya, agreed. Thanks for the quick response

In the areas we normally drive, not a chance........

In the areas we normally drive, not a chance........

I agree. But what kind of conditions do you think would be necessary to hydrolock it with a sri? (not that i'm trying to or anything lol)

maybe dirving without a hood in heavy heavy rain?! I dont know.


What are the pro and Cons over SRI and CAI? Ive serached, nothing came up.

A full cai is going to hurt lower rpms more and gain more from higher rpms (its a longer path for the air to travel). A sri is typically a bit louder and works better for lower rpms without as much gains in higher rpms.

Quite honestly, you aren't getting much gains at all with either one, so it doesn't really matter. Its for sound and looks. I believe there is more information to answer your question on the 'official intake' thread b/c it has been asked.

Bro, did you really search? This is just a few that I found on page one:

http://www.scionlife.com/forums/viewtopic.php?t=161795&highlight=sri++cai

http://www.scionlife.com/forums/viewtopic.php?t=156732&highlight=sri++cai

http://www.scionlife.com/forums/viewtopic.php?t=155974&highlight=sri++cai

http://www.scionlife.com/forums/viewtopic.php?t=155681&start=0

http://www.scionlife.com/forums/viewtopic.php?t=153935&highlight=sri++cai


etc etc etc......

In the areas we normally drive, not a chance........

I agree. But what kind of conditions do you think would be necessary to hydrolock it with a sri? (not that i'm trying to or anything lol)
I have this intake, for me to hydrolock, I would have to attempt to drive my car in the East River.

Ahh, thats good to know. I am thinking of an injen hydroshield for extra ridiculous safety. They are cheap - $20 probably not even necessary, but I can sleep at night this way

it's good to have some sort of insurance but getting the hydroshield is a bit much. How about next time, after you have driven in the rain, pop the hood open and see if there is any type of heavy condensation anywhere.

not a bad idea. If the hydroshield is too much, what kind of 'insurance' do you recommend? (that sounds like sarcasm - its not)

Umm.... w/ a SRI, you dont need any type of insurance. EVen if the filter is a little wet, usually the engine wont even notice.... it's really not until the engine takes in a big gulp of water does it hydrolock.

I have had it on since late summer with the cold air box and there is no indication of the cold air box getting wet. My next task is hooking up the ram air. A littled worried about hydro lock with that.

HAHA this is funny. You guys know that the only way to hydro lock is to 'soak' the filter, right? Not just spray a mist over it. Like it has been said before, the only way ur gonna HL an SRI is to drive through a river. Ram air or not. Unless of course you're going to bring the ram air in through a hood scoop. But by going through the fender walls, you will be fine.

Calm down guys, don't worry, it will be ok

Now the injen hydroshield (the piece that fits over the filter), i know nothing about it. Does it restrict airflow? Is it recommended? I am talking about a full cai granted, but is that hydroshield better than the bypass valve?

the only experience I have w/ the hydroshield is from K&N. I passed water through it and not much water went on the insides. Not sure about the affects on airflow. The bypass valve onlny works if the filter is pretty much submerged I believe.
I have never used a CAI before but know ppl who do. My part of the Grand Central Pkwy does flood, but it's rare.

hey everyone! im sory im new 2 dis im 17 and trying to fix my tc jus like everyone eles here. i was wondering i want 2 install a cold air intake system on my car. when i install it, how do i reset the ecu? and do all intakes come with bypass valve? and wat is the best intake on the market right now?

to reset the ecu, just unplug the negative terminal on the battery for about 10 minutes. No intake comes with a bypass valve other than the TRD, however you can buy one for almost any full cold air intake. The best is all an opinion. The one that produces the most peak hp is the injen cold air intake. However you posted here in the weapon r thread and that isn't a full cold air intake, this is a short ram intake. For a short ram intake (sri), you can't use a bypass valve nor would you need one. The full cold air intake (cai) adds a pipe that goes into the fender well while the sri has the filter sit in the engine bay. An injen hydroshield can go on the filter for a full cai or for a sri and that would help protect against water as well, just not as effectively as the bypass valve.

ok i really appreciate ur help. thanks alot

How do you like the weapon r? i am up in the air between that and an injen intake

i just installed my weapon r intake on my 06 tc. at normal driving it sounds normal but when you tap the throttle in a bit or gas it it makes a big grumbly growling sound. hella big noise! i didnt really feel much increase in power but it sounds way sexier for sure. :P

I'm having a problem with having the intake fully connect to
the throttle body using the adapter.

Does someone know an easier way? I keep twisting and turning
but it still won't fully touch.

I try to start my car and it sputters like no other.

first attach the adapter to the throttle body and lightly clamp.....then place the intake housing on the adapter give it a little wiggle and it will fit right on....rotate it to fit in a location that is near the mount spot on the wheel well........get your wheel well mount in place and be sure to use the rubber bumps they give you so it can flex......mount the mapp and tighten it all down in place.........lastly put on the filter.........also check to see if you got the 06 one for your car and not the 07.......they are shaped a little differant I think from what I can see in pictures.........took me about an hour to get it all aligned and snug.........

the sound and look are great...........CAI from Ingen is probably better........but I was going for looks and sound since performance was about the same on them both..........

Did you guys use the stock clamp for the throttle body?

I was looking at it and I tried it on. It seems like it grabs SUPER
tight. Even tugged on it and tried to move it but it won't budge.

should i be able to hear my intake over my headers and axle back exhaust? i distrinctly remmember hearing my intake over my exhaust in my Xa. did i hook something up wrong? why is my TB bracket not like the one in the picture but like the ones supplied with the weapon r intake? why did i not recieve a mounting bracket for the pipe. i ordered dircectly from weapon r's web site. ordered a weapon r with a ram air kit.

I'm having a problem with having the intake fully connect to
the throttle body using the adapter.

Does someone know an easier way? I keep twisting and turning
but it still won't fully touch.

I try to start my car and it sputters like no other.

what does the intake adapter look like ? i am not sure if i got one with my package?

Was looking around at cold air intakes and i must say that the Weapon R Secret Weapon Intake for the scion tc has been catching my eye. However i have only seen it for the 05, 06 and 07. Will the 07version work for the 08 ? will i need to use adapters at all if get the kit ?

what is this adapter? picture please?

No i dont have an adapter. I was sking if the 08 requires a adpapter for the secret weapon intake. will the 07 intake work just fine ?

yeah i understand you dont.. but i am asking what the adapter looks like.

^^^ to answer your question about the 2008 tc. i do not see any major changes in the Throttle Body design. How ever i could be wrong. Everything looks the same to me. you could always call weapon-r and ask them if you are unsure.

what size filter does it use?

wow i dint think this thread would still live. I have the weapon-r intake with the cold air box and ram air. To me probably the best intake for the tc. I directed the ram air scoop RIGHT in front of the vent opening. Also i have figure grills becuase the stock vents dont even have holes in them. For the new people wondering. The adapter from the throttle body? itz just a silicone coupler. and as for performance. Im N/A and nothing really gave me much exept my downpipe. O yeah the only thing about the ram air is that my filter gets really dirty at where the ram air connects. so im thinking about moving the ram air scoop away from the vent and just having it in that area. The cold air box seemed like cheap quality. To whoever has it, how did it fit? and also I emailed weapon-r about cleaning the filter, and they said oil is no longer required? WTH either they are just cheaping out, becuase my so called free "cleaning kit" was only a cleaner. Or the filters really are better dry. Somebody throw some cents on this. I needa clean my filter soon.

-Thanks, Tony

Does anyone know if the WR intake requires the 15mm silicon hose, or can I just use the stock hose? (This hose that connects the intake to the cam cover)

Does anyone know if the WR intake requires the 15mm silicon hose, or can I just use the stock hose? (This hose that connects the intake to the cam cover)


You can either use the hose we supply or the stock one will work too.

i have a weapon R intake on the way.why does the windows have to be reseted? plz come into detail more with this. i just open and close the windows and then what? what if i dont do this step what will happen?

If you dont do it you wont be able to use the driver side switch to control the passenger window and the auto up and down wont work

when you install the intake you have to take off the negative plug on the battery. this results in your windows not being able to go back up once you press them down. this will happen with the moonroof too.

what you do is press both left and right windows down and hold it for like 10-15 secs. after that you press and hold them up for another 15 secs. repeat the same process for the moonroof. you should know when everything is working fine again.

this might be a good diy to ask a question........ wut if i didnt disconnect the battery and install the intake? and another question, the brakets that comes with it... the one you bolt to the holes to make sure the intake stays in plaxe, what if i tighten them too much? will it show a check engine light? cuz my car was working great yesterday and today in the morning it started to show check engine light. does anyone knows why?

this might be a good diy to ask a question........ wut if i didnt disconnect the battery and install the intake? and another question, the brakets that comes with it... the one you bolt to the holes to make sure the intake stays in plaxe, what if i tighten them too much? will it show a check engine light? cuz my car was working great yesterday and today in the morning it started to show check engine light. does anyone knows why?

I don't think your CEL has anything to do with overtightened brackets. The purpose of disconnecting the battery is to force the ECU to reset by removing it from power. Provided you're not too fast with the install, the ECU will be in its default mode when power is restored. Because the short ram (it's the same with cold air) changed the air intake dynamic, the ECU needs to relearn and you need to let your car idle for 5+ (or was it 15) minutes before doing any driving with the new intake.

make sure yo pull the neg again for about 5 min and then re-connect and let run for about 5-10 min for ecu to relearn system and the cel will go away.

thanks for i solved the problem.... i over tignted the
sri to the car.... i
loosen it up a lil bit and the cel
when off. dats weird..... i read that on 9thgencorolla.com but it was with the cosmo sri.

Okay, never done this before but...what is the rectangular box located just to the left, facing forward, of the air filter box and, I guess, it musn't be too important because it seems to get left off.

My question: I bought parts to create a cai. I am going to run it through the air filter box, and would like to run some big hose (like a dryer vent hose) down to the bumper and use that for the cold air...anyone done this and have pics of the set-up?

What to keep and what not to attach to the whole set-up is seriously kickin my tail here...

There needs to be more pic by pic with arrows intrustional threads like this. I"m looking for one on the Xb '05
Thanks for the thread. It's time to show my friend who has the tc.

does this apply on 2010? i dont know if there is a difference between Weapon R 2005-2006 and 2007-2010 ones.

^^only difference on them is the maf sensor i believe