WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.The Dinan Free Flow Axle-Back Exhaust (D660-0086-BLK) is an aggressive acoustic and flow solution engineered to transform the BMW X3M/X4M (F97/F98), giving it a deeper, more menacing sound profile befitting a high-performance SUV. This system incorporates larger 76mm piping (an increase from 70mm stock) and features twin 76mm exhaust valves that are 30% less restrictive than the OE components. The design delivers verified power increases of +8HP and +6FT-LB of torque at 6600RPM. The valves are computer-controlled, forcing all gasses into the muffler for civility during low-speed driving and opening fully for an awe-inspiring, straight-pipe-like sound under high-load conditions. The finish is finalized with massive black ceramic coated tips.
Features:
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Verifiable Power Gains: Delivers an increase of +8HP and +6FT-LB of torque at 6600RPM.
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Optimized Flow & Valve Control: Features larger 76mm piping and retains the factory computer-controlled valves, which are 30% less restrictive than stock.
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Acoustic Precision: Utilizes drone abatement technologies to preserve interior comfort while providing an aggressive tone when valves are open.
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Superior Material & Construction: Built from 100% 304 brushed stainless steel with TIG welding for exceptional durability and corrosion resistance.
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Aesthetic Excellence: Finishes with four massive 114mm (4.5") diameter clamp-on, double-walled, black ceramic coated, and laser-engraved tips.
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Weight Reduction: Achieves a weight saving of approximately 5lbs over the stock system.
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Stealth Tip Design: Utilizes an inverted clamp neck and "tuck-it" design, ensuring the clamp is virtually hidden for an unblemished aesthetic appearance.
Product contains:
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(1) Dinan Axle-Back Muffler Assembly
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(4) Quad 114mm Black Ceramic Coated Exhaust Tips
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(1) Complete Bolt-On Installation Hardware Kit
Warranty This product is supported by a Manufacturer's Warranty. Note: Manufacturer warranty terms are subject to change.
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