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05-28-2019
2005 GTP and looking to update the exhaust since the stock exhaust is about to rust out. Small holes are forming and I've been plugging them with the Permatex muffler and tailpipe sealer, which works really well by the way.
Anyway, I'm wanting update the exhaust from front to back (3 in), so I need to know what all I need to get.
3" Catback exhaust for 04+
3" Downpipe (and 04+ required accessories)
Anything else required or recommended?
05-28-2019
ZZP is out of the 3 inch downpipes. Has anyone used the downpipes from this site?
Stainless Steel Turbo Exhaust Downpipe for Pontiac 97-08 GrandPrix L36 3800
Stainless Steel Turbo Exhaust Downpipe for Pontiac 97-08 GrandPrix L36 – BuildFastCar
06-01-2019
I would recommend getting the exhaust with a resonator option. I don't know anybody who has used that downpipe. I know people back in the day that used the Random Technology downpipe & were very happy with it. I believe they are still available on 3800performance.com
06-03-2019
Has anyone installed the ZZP headers? Is it all 1 piece? If so, how and the heck do you maneuver it in the engine bay to get it set right?
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