More muscle, more power and more sound. Our R&D boys have really outdone themselves on this one. They took what was admittedly an already impressive stock 2008 Challenger, streamlined the exhaust flow, swapped the bulky stock mufflers for a pair of MBRP’s new chambered mufflers and what did they get? Dyno runs on our Mustang 1100 came out at an amazing 29 HP / 25 ft/lbs gain, with instant throttle response and a sound that is classic muscle.

Of course as important as performance may be it is only half of what make a great performance exhaust system. When we took delivery of our 2009 Challenger the one thing that we found disappointing was the sound – all we heard was the engine. Thanks to the twin MBRP mufflers and resonators combined with 3" mandrel bent tubing the Challenger now sounds as cool as it looks.