ok i just got this 03 tt. last week.. i want cat back for it.. i want it to sound like a Porsche gt3. also i hear cat back will get ride of lag. in the turbo???? and i aso would like an inercooler?? wil all this be safe for a stock motor??? 1.8t 180 hp...

do the downpipe first, more hp gain and improved sound. catback doesnt do as much as downpipe, but if you can do the whole exhaust.

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TTsteve

2008 2.0T FWD S-Tronic- Black outside, black inside with premium package, 35% tint, K&N drop-in, GIAC X chip, Milltek TBE