BMW F3X (2011 - 13) 3 - 4 Series Active Autowerke Performance Exhaust

BMW F3X 435i | 335i Performance Rear Exhaust by Active Autowerke. PLEASE NOTE: DUE TO LIMITED SUPPLIES, THE F3X 435I AND 335I PERFORMANCE REAR EXHAUST IS CURRENTLY ON BACK ORDER. True BMW performance, durability, and attractive weight advantages with innovative features places the Active Autowerke BMW F3x 435i exhaust in a class of its own. This system is constructed from 100% Brushed 304-stainless steel and features adjustable 90mm or 100mm Active Autowerke double walled tips, making it ideal both for 2-door and 4-door models. The choice is yours. Key Features:  Large mandrel bent piping for maximum flow Durable, Brushed 100% 304 stainless steel for durability  Double-walled 100mm or 90mm Signature Brushed stainless tips Adjustable Tips with Embossed Active Autowerke Logo Improved power & torque throughout entire RPM band Gains of 12-15 HP over stock configuration Tight seal with use of TORCA style exhaust clamps Height adjustable mounting brackets make installa