Sorry I wasn't more clear, it's been modified from stock, it is no longer an OEM throttle body In my opinion.

Regardless it exists, will it help on a stock engine? I'm doubtful.

-Sean

 

So Mr.Irish dude(or any one) ....I got AEM cai and a TRD exhaust (witch I'm told it adds NO power gains and it DOES add power gains) I am about to get a header , weapon 4-2-1 is what I'm set on . What would you(or any one) suggest for an exhaust pipe size and or cat and or resonator . If the TRD exhaust adds nada then it is out . If it adds then cool , what else adds power gains from header back . Before you suggest though , I'm not doing turbo or supercharger . Thanx dudes and dudetts .

Chuck Norris for president of Texas !

 

The TRD axleback might add like 1hp. But its not a straight thru muffler so thats not good. To me it wouldnt be worth the money.
One rule about fluid flow is to keep the pipe size the same. Sudden expansions or contractions in the system cause turbulance. I think the WeaponR s-pipe is 2.25in. Either 2.25 or 2.5 are good diameters for N/A flow. Boosted guys usually step it up to 3in.
I used the Vibrant Performance Ultra-quiet with my weaponR header. It gave it a nice rumble. But I dont have any experience with high-flow cats... I just got rid of both of mine.

 

There seems to be a agreement from a lot of peeps on the 2.25 (if not running turb or charged). Sounds like my next step after my weapon header is to re-do my exhaust . So a staight through muff is better for gains , and what run 2.25 the whole way and just take my cat out ?

 

I have the TRD muff , sounds good but w/o power gains what the _____ is the point .Why even make a product that sounds like a perform muff and it is not just pretending..... They could of said that on their product descript.

 

Yes straight through everything is better for power. The sacrifice is that it doesnt have as much sound reduction. But, if you get good brands like vibrant, it can still do a number on rasp and sound.

 

Legal with emission ? Except Cali cuz nuttn is legal there emission wise .

 

No thats the other bad news. if you take out the cats you wont pass inspection. Just keep your stock midpipe and switch it back in the day your getting inspected... then switch it back out afterwards. I went to the hardware store and got stainless steel bolts and nuts to make this easier. Usually they just give you galvanized steel with the exhaust kits, which tends to sieze up. At least mine did... F*ing NY winter lol.

 

Yea the mechanic bud I got, that helps me with phone support when I'm doing mods , told me first thing when talkn about exhaust " make sure you get stainless steel nuts n bolts cuz they freeze bad " . Where do I find the bolt up exhaust lines that will fit my box ? I dont need muff and I guess I would have to be able to bolt my old cat back up too . Also what does takeing out the cat do to gas mileage ?

NY winters are why I live in 113 degree temp w/99% humidity...that and if I get in below 80% humidity I dry up like a horny toad . Go Texas

 

not sure what you mean by bolt up exhaust lines... but I feel like im getting better mileage. Taking the cats out definitely reduces the amount of work the engine has to do to push out the exhaust gases. Big reason you get more power, and you should get slightly better mileage too.
That rule doesnt apply to the other side of the engine tho lol. Add an intake, and still drive in the same RPM range... you will get worse mileage.

 

"not sure what you mean by bolt up exhaust lines... but"
Maybe instead of line , would pipe make more sense ?

My buddy was telling me about exhaust pipes pre fitted that bolt , instead of weld , together . Am I making any sense ? I can't tell .

 

I think I can cover the two possibilities lol. If you mean when installing the resonators, you can butt weld the ends together or use sleeves to get perfect allignment.
If your talking about installing the pipes to the car, you just bolt them together. When you get under the car you'll see how it all fits together. I bet most kits dont even include instructions its so self explanitory lol.

 

yes man the throttle body spacer probably wouldnt do you any good irish is right.
i think how it works is that when you have a car with a carburetor the fuel is just put in and it needs the air to mix it so a spacer swirls the air around in a circle and helps mix the fuel before combustion. in an electronic fuel injected car like ours the injectors spray a perfectly mixed very fine mist of fuel into the air before combustion. so the swirling of the air does no good and may even cause it to perform worse.