BMW 440i Performance Exhaust - Dinan - Axleback - Black - 17-20. This Dinan free flow axle-back for the F33 and F36 440i improves exhaust flow and delivers a refined, sporty tone with ceramic black twin tips.

Engineered with a Helmholtz chamber to cut low rpm drone, the system reduces back pressure and offers gains of up to +6 hp and +5 lb-ft at 6600 rpm. Built from 100 percent 16-gauge 304 stainless steel, it resists corrosion and installs using the factory brackets and hangers. Civil at cruise and assertive under throttle, it adds the burbles and pops enthusiasts enjoy while maintaining daily comfort.

Features

• Ceramic black, laser-engraved 89 mm twin tips
• Direct fit for 2017-2020 440i F33 F36 using factory hangers
• Helmholtz chamber to reduce low rpm resonance
• 100 percent 16-gauge 304 stainless steel construction
• Gains of approx +6 hp and +5 lb-ft at 6600 rpm
• Axle-back design that deletes the OEM exhaust valve

Have questions or want to schedule installation or customization Contact our Austin, Texas or Los Angeles, California area teams. Call 512-982-9393 for TX or 562-981-6800 for CA. If you are considering multiple items, please contact us for shipping discounts. We install on premises at both locations.

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