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Vehicle Info NeededDINANPART NUMBER: 421-D660-0077
D660-0077 Dinan Free Flow Axle-Back Exhaust, 2017-2020 BMW 440i
$1,64995
Ships on 09/10/2026
Lowest Price GuaranteeDinan Free Flow Axle-Back Exhaust2017-2020 BMW 440i Stainless Steel Black Tips
Dinan D660-0077 Features:
Dinan engineers designed the F33/F36 440i exhaust to improve 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 hard acceleration. Not only is the tone improved but the additional burbles and pops that come with it are simply intoxicating. Dinan also incorporates a Helmholtz chamber design that reduces resonance or"drone" at low RPM.The system is built to exacting specifications to ensure perfect fit using the factory hangers. It is made from 100% 16 gauge 304 stainless steel and will resist corrosion for years to come. The design features twin 89mm (3.5") polished or cermic black exhaust tips for a tasteful high-performance look.Factory computer controlled exhaust valve is eliminated.Part TypeExhaust System
BrandDINAN
Package Height11.0
Package Width30.0
Package Length48.0
Weight45.0 PG
Part CategoryPerformance Parts
Estimated Horse Power Gain6 @ 6600 RPM
Maximum Torque (Ft-Lb)5 @ 6600 RPM
Part FitmentSemi Universal
Tip FinishPolished
Vendor Part NumberD660-0077
Package Qty1
Package TypeEA
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