I have a GSR with a B20 Vtec swap and am putting on a Turbonetics t3/t4 turbo with a edelbrock victor X intake manifold, maybe throw on a megan racing test pipe, and was wondering what the best exhaust would be to buy. Money isn't an issue since they all cost about the same and I'm not going to skimp a few bucks for performance. Also I like loud so sound is not an issue, and I want the absolute best performance! They are between an APexi World Sport 2, Greddy Evo 2, Greddy Ti-C, Skunk2 Megapower RR(new), Thermal R&D

 

Open downpipe lol

 

Go with a KTeller 3" stainless or have a local shop build you a mandrel stainless 3" exhaust. I got mine done for like $300, but dont expect it that cheap...my buddy does all my work

You said you wanted "the best performance" which eliminates all of your choices above. They're all 2.5" or smaller...you dont have to go 3" but you'll pick up power and increase spool by doing so

 

Actually the Skunk2 RR is 3 inches all the way back, that's why that is the one I a favoring, and my mechanic recommended.

 

I voted for Thermal 3". it looks and sounds better than any skunk2 exhaust and has performed and been on the market for over 10 years.

 

Cant go wrong with 3 inch Thermal. Either that, or custom Kteller pipes with a nice muffler.

 

i had the thermal r&d 3" on my turbo gsr and loved it! it sounded badass and looked really good too. if i ever turbo a car again i'll get the same exhaust for sure.

 

Actually now Im thinking open downpipe with a diverter valve so it won't be annoying all the time.

 

mugen twin loop

 

pretty sure that doesn't have the flow for a turbo.

 

Skunk2 RR or Thermal 3". They both sound nasty...and obviously are 3".

 

Yeah but Greddy offers a 3.2 inch pipping for the EVO 2, which would be better than the SK2 RR or the Thermal

 

i have the evo2 it gets raspy but im all motor..but good exhaust..it has alot of flow for turbo, had a friend switch from ws2 to evo 2.. he gained 5 hp 2 tq then he went with a velocity stack and filter from blox and gained another 18 hp and 11 tq..on turb.. no ****.

 

Apexi WS..if you want quiet