Which Downpipe Size

[Antman2185]

Hey guys, I want to know which downpipe size would be the best. Either a 2.5 inch that goes to 3" after the flex like RRE, or just a full 3" downpipe like TurboTrix. They also eliminate the cat. I can get either or for $250. I have a thermal exhaust and would like everything just to bolt up, if possible. If anybody has the RRE or TT downpipe, let me know how it is.
Thanks,
Anthony

 

[GSX4LIFE]

3" all the way. dont even bother with 2.5. You cannot go too big with a turbo car. And if you have not already, chop off the neck down section of the thermal.

 

[rubbersidedown]

i concur

 

[jdmawd]

3"

 

[CH152]

3 inch, bigger is better. god that sounded ghey

 

[rubbersidedown]

Originally posted by CH152
3 inch, bigger is better. god that sounded ghey

What're you doin next saturday?

 

[CH152]

shutup man...that shet aint right... i hate ###s, ever had one hit on you? ... aint cool

 

[GKing25]

Ofcourse, go with 3''. because if you go with the 2.5'' you be mad later that you did'nt ge the 3

 

[GSXTCY]

Got to say that I am very happy with my extreme turbo 3" o2 housing with 3" dp matted to my apexi n1! Best setup that i have ever had. Previous setups were Apexi Dunk with N1 dp and a full buschur turbo back 2.5" SS.

 

[FourG63 97GST]

seen a couple WRXs with 4" downpipe running around.
seems to be working for them