BMW 550i xDrive Performance Exhaust - Dinan - Axleback, Freeflow - Black - 2011–2016. A premium axle-back that improves flow and delivers a deeper, sportier sound for your F10 550i xDrive without sacrificing comfort.

Crafted from 100% 304 stainless steel, the Dinan system mounts to factory brackets and hangers for a precise, durable fit. A vacuum-controlled butterfly valve optimizes wide-open-throttle flow while keeping highway drone minimal. The freeflow layout reduces back pressure and weight, and the quad 3.5 in. ceramic black tips provide a purposeful, high-performance finish. When paired with Dinan engine software, gains up to +10 hp have been documented.

Features

• 100% 304 stainless steel construction
• Axle-back, freeflow design to reduce back pressure
• Vacuum-controlled valve with drone abatement technologies
• Quad 3.5 in. ceramic black, laser-engraved tips
• Uses factory brackets and hangers for factory-like fit
• Fits 2011–2016 BMW F10 550i xDrive

Questions or need advice? Call our Austin, TX shop at 512-982-9393 or our Los Angeles, CA area shop at 562-981-6800. We offer professional installation and customization at both locations.

If you are considering multiple items, please contact us for possible shipping discounts.

We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov