These race headers are no joke worth every penny this is the real deal.
Video don't do it justice you need to hear it in person holy crap does it sound good! I thought my center bypass sounded good but these race headers blows it out of the water in every way. In my opinion these headers are 30% louder than previous setup and the best part zero drone. Listen to the high pitch and the downshifts. I dont know how they do it but thank you Jamie for building such awesome headers One last thing the RS does pull harder.
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 in terms of lap... ~ Mark, Australia: 991 GT3 Race Headers