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Vehicle Info NeededDINANPART NUMBER: 421-D660-0036BLK
D660-0036-BLK Dinan Free Flow Axle-Back Exhaust, 2011-2016 BMW 550i
$2,39995
Ships on Sep 14, 2026
Lowest Price GuaranteeDinan Free Flow Axle-Back Exhaust2011-2016 BMW 550i Stainless Steel Black Tips
Dinan 421-D660-0036-BLK Features:
Dinan's Free Flow Axle-Back Exhaust improves 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 harder acceleration with zero drone. 100% stainless steel construction and exacting specifications ensure that the system fits correctly using the factory hangers and will resist corrosion for years to come. A vacuum controlled butterfly valve is utilized to improve flow at wide-open throttle while keeping things civilized and "drone" free throughout. The design reduces overall weight as well and features 3.5' polished, or ceramic black, tips for a tasteful high-performance look.- More Power: + 10 HP when coupled with engine software
- Drone abatement technologies used to reduce cabin resonance
- Enjoyably louder, sportier sound
- Quad 3.5" laser engraved, polished or ceramic black exhaust tips
- 100% 304 stainless steel construction
- Uses the factory brackets and hangers for a factory-like fitment
Part TypeExhaust System
BrandDINAN
Package Height10.0
Package Width29.0
Package Length54.0
Weight78.0 PG
Part CategoryPerformance Parts
Estimated Horse Power Gain10
Part FitmentSemi Universal
Tip FinishBlack Ceramic Coated
Vendor Part NumberD660-0036-BLK
Package Qty1
Package TypeEA
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