2006 bmw 645 ci 2.25 straight pipes with h pipe.. Meineke cinnaminson

[@Tatesbake]

I cant tell if the tech in the background is using the the air gun or if those are backfires! Start up and idle makes that 6 serious sounds track ready

[@anthonynastasi4098]

William Knowles cold air crack cold start it gets better a few seconds later

[@anthonynastasi4098]

William Knowles sounds great cold start was awful in my opinion it cleared up as soon as the pipe got some heat in it

[@coolbmwdude]

how much was it?

[@Ali-uv3dz]

german gun.