Vision Imports, RPW, and even AP Parts...ask them or look at their sites. I don't know off the top of my head. Stage 1 might not change to much but Stage 2 needs reinforced valve springs and an AFC to tune everything out. Plus, it will also leave you with a rougher idle. All things to consider. Just one more thing, avoid asking for gains since no one really knows until you toss it on a dyno. Guesses are worthless and the butt dyno LIES (the psychology of bolt ons). It's all about how well the mods work together with each other. Not 5 HP plus 5 HP ala GT3. With all those breathing mods counting the cam though, there should be a lot of extra kick.

 

Yes, but why not hold off and just get a complete 2.5" setup all the way around?

 

does anyone make 2.5" headers?

 

Because the parts to do so with bolt ons currently do not exist.

 

Ive seen a 2.5" Test pipe for the lancer, and Kamikaze's Downpipe is 2.5" so it is possible for 2.5"setup all the way through.

 

Stumpy beat me to it, but I was going to say that Kamikaze's header and downpipe are 2 1/2 inch so that would be perfect.

Sounds like I just got a new exhaust system. BWAHAHAHAHA

Junior

 

I sit corrected. I thought the Kamikaze was 2.25". Ya learn something new every day, eh?

 

ROCK says that 2.5" inch is too big for an NA motor. does anyone make a 2.25" catback system then? i am not too familiar with the parts available for the lancer. i know that RRM makes the 2.25 axle back, just wish they would put out their cat back. hopefully the whole catback exhaust will be around the same price range as buschur.

 

Why is 2.5 too big. Mine is 2.5 I had a custom cat back put on

 

I'm kind of skeptical about getting a 2.5" system myself. Piping that big for our cars might lose some bottom end torque. If you're looking for a 2.25", I think the only one available right now is from Thermal R&D catback available from www.ptuning.com .

Greddy is coming out with a catback soon too for our cars, but I'm not sure yet what the size is. As I said in previous threads, Thermal R&D and Greddy exhausts costs an arm and a leg. Right now, I'm leaning towards getting the Thermal R&D.

 

2.5" netted only positive HP/TQ numbers ON A DYNO if people aren't to familiar with the products from Buschur. It leaves plenty of room open to expand your power options. The only problem I would see is people having 2.5" from the exhaust manifold back, but not having decent mods on the intake and head side of things to support that much space (waaaay more than an intake).