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Now that there are a few choices, what aftermarket exhaust to you like for the 991 gt2rs??? Most interested in improved sound. Performance improvement not necessary. Thoughts?
I currently have the JCR hi flow cats which i like . I also had dundon Inconhell before which was also very nice but much louder. I would recommend any of them depending on the loudness level you want .
JCR 20-30% louder
Inconhell 60-70% louder
Ive got the Dundon street headers with cats and the lifetime muffler. I also have the titanium tips on the muffler. The sound is spectacular. Especially close to redline, but not excessively loud to damage hearing. The ti tips turn blue which look really good. Overall very happy.
Ive got the Dundon street headers with cats and the lifetime muffler. I also have the titanium tips on the muffler. The sound is spectacular. Especially close to redline, but not excessively loud to damage hearing. The ti tips turn blue which look really good. Overall very happy.
I picked up the system below slightly used. Tried running it with the center x-pipe but it was too loud for my tastes - introduced a bit of drone. Pulled the x-pipe and reinstalled stock center muffler combined with the Iconel Race Cats and now it's perfect. Completely livable when cruising with no drone and really improves the sound quality on acceleration and overrun. I'm sure their muffled center would be great as well. Overall so much better than stock system.
The GT2RS is already pretty loud and even has some serious drone with the stock exhaust. The drone is quite pronounced with the valves open at 70mph.
The main cause of that drone is its short lenght once the valves our open. The distance from the turbo flange to the tip is just 12 inch long.
Short lenght tubes = major drone. The only way to get rid of that drone is with a full lenght exhaust.
Our GT2RS sport exhaust sounds louder and more aggressive from idle to redline with a fantastic gurgle on overrun.
We use full 3inch tubing, 50 cell race cats and no valves. No CELs and no ECU upgrade needed.
