BRAND NEW DINAN FREE FLOW AXLE-BACK EXHAUST SYSTEM, 304 STAINLESS STEEL, POLISHED TIPS, COMPATIBLE WITH 2012-2015 BMW 335I DINAN ENGINEERS DESIGNED THE F30 335I AND F32 435I EXHAUST TO IMPROVE EXHAUST FLOW BY REDUCING BACK PRESSURE, RESULTING IN INCREASED POWER OUTPUT AND A GREAT SPORTY SOUND THAT IS CIVILIZED WHEN YOU WANT IT TO BE, AND PLEASANTLY AGGRESSIVE UNDER HARD ACCELERATION. DINAN ALSO INCORPORATES A HELMHOLTZ CHAMBER DESIGN THAT REDUCES RESONANCE OR"DRONE" AT LOW RPM. THE SYSTEM IS BUILT TO EXACTING SPECIFICATIONS TO ENSURE THE PERFECT FIT USING THE FACTORY HANGERS. IT IS MADE FROM 100% 16 GAUGE 304 STAINLESS STEEL AND WILL RESIST CORROSION FOR YEARS TO COME. THE DESIGN FEATURES TWIN 3.5" POLISHED STAINLESS EXHAUST TIPS FOR A TASTEFUL, HIGH-PERFORMANCE LOOK. THE FACTORY COMPUTER-CONTROLLED EXHAUST VALVE IS ELIMINATED. COMPATIBLE WITH: BMW: 2012-2015 335I 2013-2015 335I XDRIVE 2014-2016 435I 2014-2016 435I XDRIVE FEATURES MORE POWER: + 6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM HELMHOLTZ CHAMBER TO REDUCE DRONE ENJOYABLY LOUDER, SPORTIER SOUND TWIN 3.5" LASER ENGRAVED, POLISHED EXHAUST TIPS 100% 304 STAINLESS STEEL CONSTRUCTION USES THE FACTORY BRACKETS AND HANGERS FOR A FACTORY-LIKE FITMENT SPECS: MATERIAL: 304 STAINLESS STEEL MAX HP GAIN: 6 AT 6600 RPM MAX TORQUE (LB-FT) GAIN: 5 AT 6600 RPM PRODUCT TYPE: AXLE-BACK EXHAUST SOUND LEVEL: MODERATE / AGGRESSIVE SYSTEM TYPE: AXLE-BACK YOU CAN VIEW AND DOWNLOAD THE COMPLETE ASSEMBLY INSTRUCTION BOOKLETS FOR THIS EXHAUST SYSTEM HERE.
