GFBV D660-0051 Dinan Free Flow Axle-Back Exhaust - 2011-2016 BMW 535i - Fits 2011-2016 BMW 535i, 535i xDrive

Stainless Steel - Polished Tips - F10Dinan engineers designed the F10 BMW 535i 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 factory computer-controlled exhaust valve is eliminated.; 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 89mm polished, or ceramic black, exhaust tips for a tasteful, high-performance look.Features and Benefits: 100% 304 stainless steel construction; Enjoyably louder, sportier sound; Helmholtz chamber to reduce drone; More Power: + 6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM; Twin 89mm (3.5") laser engraved, polished or ceramic black exhaust tips; Uses the factory brackets and hangers for a factory-like fitmentDIN ESK