Porsche Gt4 or Gt3 and Gt3 Cup bolt on silencer
Bolt on silencer made to fit Porsche Gt4 or 997 Gt3 or Cup with adapter.
Used 3 times. Was very effective for my car made 109dB before and 96dB after in statistic test.
Comes with adapter to fit 997 Gt3 Cup car. Bolt on and sit outsiders of bumper. Easy to fit.