AWE Tuning BMW F8X M3/M4 SwitchPath Cat-Back Exhaust - Diamond Black TipsSwitchPath utilizes factory valving and retains M Sport button functionality SwitchPath utilizes factory valving and retains M Sport button functionality Tip options include 102mm double walled, slash cut tips in Diamond Black 50 state legal Cat Back design: sick sound with all catalysts intact Proudly engineered, designed, and manufactured in house at AWE Handcrafted from U. S. sourced . 065" wall T304L stainless steel Max gains of 12 hp and 16 lb ft
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AWE Tuning BMW F8X M3/M4 SwitchPath Cat-Back Exhaust - Diamond Black Tips