Dinan Free Flow Axle-Back Exhaust - 2012-2019 Alpina B6/BMW 650i

Stainless Steel - Black Tips - F06/F12/F13

PART# D660-0040-BLK

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Overview

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

BrandDinan
Dinan Point Value3
Emission Code5
Height11
Labor Time (Hours)1.6
Length48
Max HP Gain10 - 23 (Depending on application)
Max Torque (lb-ft) Gain0 - 15 (Depending on application)
Product TypeAxle-Back Exhaust
Weight70
Width30
Part NumberD660-0040-BLK

Emissions

5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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