I was on the SRTforum the other day and saw that some one with a stock turbo bolted on this 4 inch system, and said that they felt some gain in hp, course the site says its better for a bigger turbo. Does anyone know anything about this, can you really run a 4 inch on a stock turbo if you have some bolt on stuff, maybe even a s2 kit??

 

I've heard different things.....If your planning to put a larger turbo on might as well go with the 4" exhaust (it can benefit from the better flow)....as for it hurting you with the stock turbo---should gain plenty hp but might lose a lil bit of torque....3" is the good number to go with for a stock turbo (3" is plenty flow for stock)...but 4" isnt gonna rob your car of any major power...hope that helps

 

Yea cool thanks, I was just wondering, not too sure on the larger turbo need alot of thing before I can get one.