bigwes

Does anyone know if you can find downpipes for the GS4? I've been looking online but I haven't been able to find anything.

bjohn

An oem one? Or aftermarket?

Blanco

iTrader: (8)

No one makes them, because that's where the cats are located.

bjohn

If he specified replacing the cat, I would have said thats where the cat goes.

I'm going to go out on a limb and assume he wants an aftermarket downpipe, which IF you found one. Would probably be just north of a million dollars like everything else aftermarket on these cars lol.

vwynn

iTrader: (4)

GS400s its just..

Header > Cat > catback.

bigwes

I'm going to assume that the only thing u can put on the GS4 is a catback exhaust, PPE headers, and a custom y-pipe before the cat.

bigwes

^^ as far as the exhaust goes

bigwes

I've seen a downpipe for the 98-03 GS3 but I don't know if that will fit for the GS4

vwynn

iTrader: (4)

dont think you can put a custon y pipe before the cat because the cat is right after the headers.

bigwes

Does anyone know when SRT will come out wit the GS4 supercharger kit??

Blanco

iTrader: (8)

From front to back it COULD go like this:

PPE headers, CUSTOM SS hi-flow cats w or w/o o2 bungs, custom y-pipe w/post cat o2 bungs, THEN "cat back" exhaust of your choice. Depending on how legal you wanted to be.

Oh, how I wish Carson still sold their "true" catback exhaust!!!

vwynn

iTrader: (4)

its not really when.. they have everything for it. its just a matter if the person really wants to fork out the $$.

but yea they already have it and some of us already have the RMM superchargers.

boils down to if you have the $$ to spend on one.

bjohn

As far as modding a gs4 goes? I will ONLY use parts I've made, including stainless exhaust etc. Saving for a tig welder as we speak