is the agency power exhaust any good?? any body have experience with them?? well, since the stock size of the tc's exhaust is about 2' and the agency's power is about 2.25'.. is that a much differnce?? also anyone know what the oval doughnut shape o-ring is for that is included in the exhaust system?? where does it connect in the exhaust system?? thanks

 

agency power's 2.25" only? whoa... but if you get it, you'll be bolting it up to the s-pipe. the donut is probably a gasket that would probably go on somewhere in that catback system in between 2 pipes.

 

I had a AP exhaust before but sold it because im going turbo and believe me when i say its a damn good exhaust. it wasnt all looks i felt a difference in my car when i installed it. And yes that donut ring i believe went between the mid and axelback of the exhaust(not sure, its been to long). Also i think there is DIY here on SL on how to install a AP exhaust.

 

shouldn't be hard to figure out how to connect pipes

 

you think their is more to gain in going 2.5 inch catback vs agency powers 2.25 inch catback. Staying na i mean.

 

i have agency power and i have the supercharger . it made a big change. i like it alot . 2.25 is just fine for na

 

well I know its fine .... but is it best??

 

id say so

 

why would you think 2.25 is the best?
well i know injen have a 60mm cat which is in between 2.3 to 2.4 i'm not too sure but most manufacture do go with 60mm for some reason right. i still researching which is the best size but at the moment i'm probably going with 2.4 for my brothers tc and see how that feel.

 

i wonder why they went with 2.25.... bc 2.25 is really too small for s/c or turbo. Ive seen few posts and dyno's showing 3" is best for s/c or turbo. 3" on the stock s/c car gained like 5hp over a 2.5 inch megan header back. And someone else gained 27hp when he switched from stock exhaust to 3" back on a turbo charged car with 5 psi.

 

s/c would be better of with 2.5. turbo should be good with 3" because backpressure really isn't good for the turbo itself.

 

my sc seems to do fine with 2.25 agency power exhaust.

seems to flow just fine.

 

i believe ptuning proved that 3'' outperforms 2.5" on a stock tc supercharged ...

 

yea but im not willing to spend 700 dollars on an exhaust . i got my agency used for 350

 

yea it all depends if you were willing to spend that extra 350 to put down 10 more hp ..... is that worth it ....