This exhaust really complements my Whipple Supercharger, ARH Headers/Cats, Jet MAF, and Air Raid cold air intake! Going to dyno-tuner tomorrow to get it dialed in! Exhaust not obnoxiously loud, great sound when you get on it! Left and Right pipes really give it a serious idle. Highly recommended! Priced right, free shipping, AND a $75.00 mail-in rebate!!!