has anyone here in NJ have their DRAXAS exhaust installed? hoping to see and hear it personally!!!

 

nope, not yet. I havent recieved it. soon though.

 

Look for header related posts in the other Topic on this same Forum.. Lets keep this thread on topic.... :-)

 

Yeah ummm back to the topic.... OMG DYNO!!!!!!!!

 

lol - yea thats back on topic. Whats up w/ the dyno results?

 

Exhaust is finally installed and it sounds good. Dont expect to not get attention from people while driving. In between getting gas and just driving people stop and check it out. Zero rasp, ........nothing but deep tunes for the entire 2hours I drove the car on and off today. Exhaust was directly bolt-on and everything fit as stated. Performance wise .... I do feel the car being able to breathe better and I would assume that there is some extra torque/hp. Since I just matted the entire car its louder outside and opening up the windows makes a pretty big difference.

Overall - draxas did a good job. I am going to remove the links about the scratched piece because I do not want people to get the wrong idea. Im happy with this product and think people should choose this setup ... it will be great for the supercharger because the car can not push the air out as smooth w/ the stock exhaust. The reason why the trd exhaust is not changing the performance of the car is because the peoblem is the when the air comes out of the header down to the midpipe ......not the axel back. Anyway - have fun people - hope to hear more peoples views on how things went w/ their installs.

 

Not a good sign that you have to "assume" there are gains :\

 

Well, you know obviously his ___ isn't the Officially Sponsored Draxas Dyno so he can't pump out the real numbers from it .

 

im not a good person for telling gains - really.... now that I matted the car it just launches w/o rattle (and a ton less road noise) ...so its more like being in a higher priced car. Meaning - the car could have 300hp but takes off very smooth so you might not know (well u would but u get my point). All im saying is that I like my choice because im not riding around with an 89civic sound comming out of the back of my 05 car.

 

Before i leave i wanna say ..... if you are running a natural car you are pushing around 140ish whp. Nomatter what you do to this engine ... intake, exhaust, block, pistons, header ..... you are only going to get 180whp max. You have to do things in stages. First I did my sound proofing, then my speakers while the car was apart. The sound proofing is going to help w/ the ease in shifting, less road noise, and less exhaust noise. Now I am ready for a header. After that im ready to throw the supercharger in. You have to go in steps. This exhaust is going to be sweet w/ the supercharger. Im positive you will see gains w/ forced induction because our engines do not flow a lot of air. We arent talking about a hemi here so you cant do much but prepare for when you add more air to the engine via the supercharger or turbo. I was in the supercharged car yesterday .... i was impressed. The guy, scott, that was driving it wasnt really but the torque difference is very much noticible. That sounds like a good move to keep my car under warranty. ...and now my car can release the air mass ... you have to do things in steps guys. All the right parts will make your car perform better. Thats the key.

 

Hey all, I just installed the draxas exhaust (s-pipe back) on friday and its awesome. Just like what jwaggz said... It sounds great. The exhaust note is awesome. I have the alphawerks header and injen CAI and the rasp is gone. The only time I hear any sort of rasp is when i first start the car to warm it up and the exhaust is cold. you have to get on it really hard to even hear that rasp. Once the exhaust warms up the rasp is gone. Performance wise, I have to say my low end tourqe is back. Mind you im driving an automatic and back when i put my CAI on just by itself i was chirping my tires off the line with the rest stock. When i put my headers on i lost that tourqe. Now its all back and theres a lot more of it. At higher rpms you really feel the acceleration. I still am running the stock s-pipe because im waiting on the Creative Compacts s-pipe to come in so there are probably more gains to be seen this week when i switch out s-pipes. Why i didnt go with the draxas s-pipe? It just seemed too expensive at the time to order the exhaust with the s-pipe even though you get a deal on it. I ordered the CC s-pipe the day after i ordered the exhaust . I ended up paying more for the CC-s-pipe in stainless finish then what the draxas one wouldve cost. Also I wasnt sure if the anti-foulers would fit in the draxas s-pipe without hitting the frame or anything. I had never seen pictures of the draxas s-pipe so i didnt know the position of the O2 bung. Looking at the CC s-pipe, the O2 bung appears to be in the same location as the stock s-pipe so i knew there wouldnt be a problem fitting the anti-foulers which is a must in my opinion. I tried the ZPI O2 Simulator a while back and it never worked so the anti foulers are my only option right now as far as the CEL goes. Overall I love this exhaust system and i highly reccomend it. Creative compacts full exhaust might seem cheaper at the base model but if you price it together with stainless finish, high flow cat, and resonator (like the draxas comes already) Your paying more and you dont even get an s-pipe. The draxas might seem like an expensive option to some people but I think your actually getting your moneys worth. That was my research before I decided to go with draxas. Im going to take some pics of the exhaust when i install the s-pipe this week. I might try and do a vid clip if a can get the right camera. Ill post.

 

PS- If anyone wants to hear the exhaust in the hampton, va area hit me up.

 

We will be organizing a Dyno Day in SoCal for the end of March. We're going to see how many Scion tC's we can get together at the same dyno on the same day. It shoudl provide some very good information on multiple setups.

We will of course be testing our exhaust on a Scion tC that is bone stock and we will post this information here. It's time we released an updated dyno for our system.

 

I take back what I said about performance gains - I dont know how factual this is but it seemed like it took my ECU a day or so with the exhaust on to learn how I drive - 3 days after the install and my car is quicker and you can tell there is a performance gain without a doubt.

cant wait for the dynos.

 

Please take no offence to this, but your ECU doesnt need to learn how the exhaust works. You are not doing anything with electrinics, simply letting exhaust gases flow more freely. The only time electronics come into play with the exhaust system are the sensors (the o2 sesnsor for this case). That sensor lets the ECU know that the CAT is still in place and functional (restricted air flow for stock exhaust). Once you add an aftermarket header, you are freeing up the exhaust system ALOT, there for more gases reach the o2 sensor at a faster rate. Because this happens, the sensors thinks something is wrong with the OEM CAT in the stock exhaust manifold (which in reality, it is correct, something is wrong... its not there!). The solution many people are doing to solve that, is to add 2 spark plug adaptors to the s-pipes bung (where the o2 sesnsor is located), and attach the o2 sensor to the spark plug adaptor. All that does is move the o2 sensor farther away from the majority of the flow, so the gases are not getting to the sensor as fast (makes it seem like the stock CAT is still in place and functional).

I know i went off there for a semi-long explaination, but all in all, your ECU should not affect your performance unless you have a aftermarket header and u are throwing a CEL. the draxas system alone (with stock exhaust manifold) does not affect the ECU (unless you damange the o2 sensor).

an example of the ECU coming into place is an intake. An intake plays a role into the ECU, because of the MAS, that sensor directly reads the airflow, and sends it to the ECU so it can compute how much fuel to use for the air/fuel ratio. Once you install a mod like that (one that alters a ECU reading, it is HIGHLY recommend you reset the ECU by disconnecting the battery)

if you need me to clarify that a little more or have any questions, feel free to ask.

 

Well I would like to edit my last review concerning the rasp... I installed the creative compacts s-pipe and with more driving with the exhaust installed now I must say there is actually still a slight rasp at around 4000 rpm. I really dont mind but i know a lot of people dont like the thought or sound of rasp. It really isnt that bad and the deep tone of the exhaust makes up for it.

I also had a problem mounting the o2 sensor on the CC s-pipe. It screwed in fine but with the antifoulers on, the 02 assembly sits snug on a bushing on the frame. It rattled against it at low idle but i put a piece of rubber hose around the 02 sensor and it no longer rattles. I didnt have any other problems other then that. Here are some pics of the exhaust (still trying to get some video) :


Exhaust Tip
http://putfile.com/pic.php?pic=2/5217545440.jpg&s=x402

Resonator
http://putfile.com/pic.php?pic=2/5120013785.jpg&s=x10

Hi flow cat
http://putfile.com/pic.php?pic=2/5119563113.jpg&s=x10

Rear Section
http://putfile.com/pic.php?pic=2/5120011878.jpg&s=x10

O2 Sensor w/anti foulers hitting bushing
http://putfile.com/pic.php?pic=2/5120005529.jpg&s=x10

Muffler
http://putfile.com/pic.php?pic=2/5120003845.jpg&s=x10

Mid pipe hanger
http://putfile.com/pic.php?pic=2/5119593188.jpg&s=x10

Flange to s-pipe
http://putfile.com/pic.php?pic=2/5119585359.jpg&s=x10

Mid-pipe flange
http://putfile.com/pic.php?pic=2/5119582914.jpg&s=x10

Draxas Logo on tip
http://putfile.com/pic.php?pic=2/5119575024.jpg&s=x10

Clamp connecting mid pipe to rear section
http://putfile.com/pic.php?pic=2/5119573048.jpg&s=x10

Full view
http://putfile.com/pic.php?pic=2/5119545819.jpg&s=x10

Rear Shot
http://putfile.com/pic.php?pic=2/5217552943.jpg&s=x402

Rear Shot 2
http://putfile.com/pic.php?pic=2/5217542595.jpg&s=x402

 

Please keep in mind that you used a different S-Pipe then the DraXas S-Pipe. This may have affected the sound of your exhaust.

Also, is the exhaust cold when the rasp kicks in? If so, does it go away after a little bit of time driving?

 

BrEaK_AwaY - i was thinking along the lines with what you said but it just seems odd that it feels a lil bit smoother then the first day I had it installed. either way - im happy with the product. it was a good deal. Only thing i have to do is jack the car up this weekend and find out what piece toward the front end is causing the rattle im having. its only when the car is at idle.

 

jwaggz82, check ur heat shield mite messed it up when it was install or mite be the 2 12mm cross bracket check that out.

 

When the exhaust heats up the rasp goes down a good amount but its still there.