Just got print-outs for the GT2 exhaust along with the 911 turbo. The porsche mags all report a much deeper rumble for the GT2 system and over the 911 exhaust, there should be some gain in HP. Both exhaust systems look much the same. The GT2 comes with cats separate from the muffler, but hangers in both systems look like they are in same places. The exhaust tips for the GT2 are a bit larger in diameter, so they may require some bumper mod, not sure. But the fat GT-2 exhaust tips sure look sweet. However, using a GT-2 exhaust should erase any warranty doubts from Porsche and also from any new buyers when one gets ready to upgrade the '07 to the next "upgraded" turbo.

 

Great Question !!!! --If you want to run with it further at one point I had considered the Gt2 Turbos amongst the various turbo upgrades. I am very happy with my current setup but I imagine that if one wants to mod within OEM parameters the Gt2 has some choices .

 

GT2 exhaust is Ti so there should also be some weight savings. Exhaust is about 4k at the dealer.

 

MUFFLER 997 111 026 80

Muffler assy is Ti

STRAP FOR ABOVE 997 113 119 30 ( QTY 2 )

TAILPIPE 997 111 252 01
TAILPIPE 997 111 251 01

CLAMP FOR ABOVE 997 111 240 80 ( QTY 2 )

CAT CONVERTER 997 113 009 80
CAT CONVERTER 997 113 010 80

CLAMP FOR ABOVE 997 111 230 80 ( QTY 2 )

GT2 Bumper's and Exhaust will fit the 997TT

A local dealer installed front & rear bumpers with the GT2 Rear Decklid assy

Gee-Bee

 

Could you please post some pics.

 

GEE BEE, we need some pics.

 

[quote=GEE-BEE;1950223]MUFFLER 997 111 026 80

Muffler assy is Ti

STRAP FOR ABOVE 997 113 119 30 ( QTY 2 )

TAILPIPE 997 111 252 01
TAILPIPE 997 111 251 01

CLAMP FOR ABOVE 997 111 240 80 ( QTY 2 )

CAT CONVERTER 997 113 009 80
CAT CONVERTER 997 113 010 80

CLAMP FOR ABOVE 997 111 230 80 ( QTY 2 )

GT2 Bumper's and Exhaust will fit the 997TT

A local dealer installed front & rear bumpers with the GT2 Rear Decklid assy

I guess this means that the GT-2 exhaust tips don't fit the narrow tear-drop holes on the 997 tt? I guess you could use shims and keep the tear-drops. Getting another rear bumper is just more problems and expense.

 

Eric ( OCPorsche ) has the pic's

Iam not sure about the tip thing regarding the rear Bumper

Gee-Bee

 

I've driven the GT2 (35 miles, rpm up to about 6000) and listened to a second one another time. The exhaust note of the GT2 is a little louder than stock Turbo, has more low frequency rumbling, but still relatively quiet and continuous in character and IMHO not too exciting. If sound is what you are looking for, both AWE and Cargraphic exhausts sound better to my ears. Just my 2 cents, this is a matter of personal preference so YMMV.

As far as reducing back pressure, I don't know what the GT2 stock exhaust uses, but perhaps something like 400 or 600 cell cat or whatever it is that the stock Turbo uses? If true then both AWE and Cargraphic, using 200 cell cat, are "better."

The main advantage would be weight saving, but AWE and Tubi are also a bit lighter than stock.

 

I see little reason to go this route when the aftermarket will more than likelyy be as light and make more power. Just my opinion.

 

I with you on that GMONEY !

 

I would not count on the fact that using a gt2 exhaust on a turbo will erase warranty issues. It is still dealer dependent and their are dealers who would void you out in a porsche second for such a change. Best to check and double check with your dealer first.

 

Cross-MA has a 100% Titanium Exhaust that is only 20lbs.

http://www.cross-na.com/ViewProduct....4&CarMakeID=14

 

warranty issues are not dealer dependent. It all goes back to PCNA.

 

if you like loud that 1mm wall thickness Ti will do the trick! Nice piece, shame about the tips though.