If raw and rowdy are your speed, the Track Edition Cat Back is your dose of steel. The Track Edition Exhaust retains all the engineering and precision of the SwitchPath™ Exhaust, including the X-pipe and 3” diameter tubing, minus the valves in the rear sections. The result? Constant rumble. Warning! 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. The included Performance Mid Pipes replace the factory mid section with a 3” stainless steel X-pipe, mating to the factory Axle Back.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.. Peak gains of 4 hp and 4 lb-ft of torque, max gains of 22 hp and 18 lb-ft of torque, at the wheels. AWE Tuning 18-19 BMW M5 (F90) 4.4T AWD Cat-back Exhaust - Track Edition (Diamond Black Tips). Handcrafted from dual 3” U.S.-sourced CNC mandrel-bent .065” wall T304L stainless steel. Included Performance Mid Pipes and catbacks feature a precision-engineered x-pipe. 21 lb weight savings over stock with the Track Edition Cat Back Exhaust. AWE Track Edition Catback Exhaust for BMW F90 M5 - Diamond Black Tips. AWE Track Edition Catback for BMW F90 M5 - Diamond Black Tips. Designed, engineered, and manufactured in-house at AWE. Catbacks are pure bolt-on for factory-like simplicity. Less is more: clean, straight-through design. AWE No Check Engine Light Guarantee. Perfect fitment, guaranteed. Lifetime Warranty. Track Exhaust

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