🚗 Elevate Your Ride with Dinan's D660 Exhaust! Constructed from 100% 304 stainless steel for durability and performance. Innovative Helmholtz chamber technology minimizes drone for a smooth ride. Experience a +6 HP increase at 6600 RPM for that exhilarating drive. Enjoy a sportier, more aggressive exhaust note that commands attention. Twin 3.5" laser-engraved tips in polished or ceramic black for a stylish finish. Sporty sound 6 HP boost 304 SS build The Dinan D660-0045-BLK Free Flow Axle-Back Exhaust is engineered for 2012-2016 BMW 335i/435i models, delivering a powerful +6 HP and +5 LB-FT torque boost at 6600 RPM. Its innovative design features a Helmholtz chamber to reduce drone, while the twin 3.5" exhaust tips add a sporty aesthetic. Crafted from 100% 304 stainless steel, this exhaust system promises both performance and longevity.