Dinan Free Flow Axle-Back Exhaust - 2011-2016 BMW 550i
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.
Features:
- 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
SPECS
| Brand | Dinan |
|---|---|
| Dinan Point Value | 3 |
| Emission Code | 5 |
| Height | 10 |
| Labor Time (Hours) | 1.6 |
| Length | 54 |
| Max HP Gain | 10 |
| Product Type | Axle-Back Exhaust |
| Weight | 78 |
| Width | 29 |
| UPC | 813725021645 |
| Part Number | D660-0036 |
