New to the website but been doing alot of searching on here and other site's to see who is running a Mac prochamber on a 05 to 09 GT... I have all stock exhaust execpt for a Pypes Violator Axle back which I like alot but would like to go a little bit louder and deeper without changing the axle back that I have. I like the sound of the MAC O/R Prochamber but havent heard any clips where it is paired with Violators. Looking for any kind of feedback and how you like the prochamber.