I'm very happy with it. In terms of affecting the cars outright performance, as such, I cant really say till I've been on the track, strip or Dyno with it - but Ill eat my hat if the car isn't measurably quicker in all situations. On a fast back road run for 150 miles it felts quicker for sure but... read more
Mark, Australia 991 GT3 Race Headers
GT3 321 Side Muffler Deletes for 997/991
Click on a photo to enlarge.
Availabe in OEM lower flow tube size for stock muffler or 3" lower flow tube size for use with Dundon Lifetime Mufflers
Both Versions offer:
- 321Stainless Construction
- Same high quality valves as used in our battle tested Race Headers
- Reduce weight through the elimination of side mufflers
- Reduce heat on the rear tires and under the decklid
- No Drone!
- 100% Lifetime Guarantee, including Track Use
3" Lower Flow Path Offers
- 44% improvement in flow over stock
- 20% reduction in pressure drop over stock
Use with Black Muffler to have a bullet proof light weight track setup, with no drone
Use with Orange Muffler to have a bullet proof light weight track setup for dB restricted tracks!
Take $500.00 off the package when purchased with a Dundon Lifetime Muffler!