BRAND NEW DINAN FREE FLOW AXLE-BACK EXHAUST SYSTEM, 304 STAINLESS STEEL, BLACK TIPS, COMPATIBLE WITH 2012-2016 BMW 328I DINAN ENGINEERS DESIGNED THE BMW 328I/428I 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. LIKE ALL DINAN EXHAUSTS OUR 328I/428I FREE FLOW AXLE-BACK EXHAUST IS ENGINEERED TO REDUCE LOW-RPM DRONE SO THE CABIN OF THE VEHICLE IS STILL INTIMATE AND NOT DROWNED IN AN EXCESSIVELY LOUD TONE. THE SYSTEM IS BUILT WITH EASE IN MIND AND UTILIZES A SIMPLE BOLT-ON INSTALLATION WITH INCLUDED MOUNTING HARDWARE. IT IS MADE FROM 100% 16 GAUGE 304 STAINLESS STEEL AND WILL RESIST CORROSION FOR YEARS TO COME. THE DESIGN FEATURES TWIN 70 MM CERAMIC BLACK AND LASER ENGRAVED EXHAUST TIPS FOR A TASTEFUL HIGH-PERFORMANCE LOOK THAT YIELDS A MAXIMUM PERFORMANCE GAIN OF 4 HORSEPOWER AND 3 FT-LBS OF TORQUE. THE FACTORY COMPUTER-CONTROLLED EXHAUST VALVE IS ELIMINATED. COMPATIBLE WITH: BMW: 2012-2016 328I 2013-2016 328I XDRIVE 2014-2016 428I 2014-2016 428I XDRIVE FEATURES MORE POWER: + 4 HP @ 6600 RPM, + 3 LB-FT AT 6600 RPM DRONE ABATEMENT TECHNOLOGIES USED TO REDUCE CABIN RESONANCE ENJOYABLY LOUDER, SPORTIER SOUND TWIN 70MM (2.75") LASER ENGRAVED, CERAMIC BLACK 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: 4 AT 6600 RPM MAX TORQUE (LB-FT) GAIN: 3 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.
