Exhaust system help for 420a w/turbo

[dwizzle]

I need a new exhaust system for my 420a w/ a hahn turbo stage 1. It still has stock piping...with a muffler welded on. Open to suggestions thanks

 

[Josh2g]

It will be fairly tough to find a 420a turbo aftermarket turbo back exhuast system so you may have to buy a aftermarket 3 inch exhuast and customize the begining to match your downpipe so that it will all work together. For an exhuast system check out Greddy, HKS and Apexi just as some trusted examples.

 

[dwizzle]

Thanks a lot! One more question. Is the 4G63 exhaust system compatible with the 420a? Like I previously mentioned, I have a turbo on my 420a, and I can find 3" piping alot easier for the 4G63's. And if not, how easy would it be to make one fit?

 

[zcoh2gdsm]

it's not so much the piping, it's the way it bends and the flange from the o2 to the hot side of the turbo. if i were you, research the 420a's exhaust specs and whatnot, see if it's the same shape as the gs-t (it might be they're both fwd) and just have a shop weld on the flanges from your stock exhaust.

 

[dwizzle]

I have actually done a little bit of research, and I can not seem to find any information on it as of yet. I am wondering if somebody has put GS-T piping on a 420a before, and knows from experience on how well they line up.