If raw and rowdy are your speed, the Track Edition Axle Back is your dose of steel. The AWE Track Edition Exhaust in Axle Back form provides the most cost-effective aggression in the lineup by retaining the M5’s factory mid-section and replacing the rear sections with Track Edition straight pipes. Please note: These versions are known to get rowdy, and may be too much for many. For that reason, this particular version cannot be returned due to sound preference. Prepare yourself! Think you might want the Cat Back one day? No sweat, we've got you covered. We've engineered the AWE Exhaust Suite for the M5 as a completely modular configuration that allows you to do just that, at any time. Keep in mind, the Performance Mid Pipes or an Axle Back alone will require cutting, where the full Cat Back experience will bolt right up. AWE's signature 4" double walled slash-cut tips finish it off -- all individually adjustable, allowing depth into the bumper to be set according to personal taste. Available in Diamond Black or Chrome Silver.