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 Valved Axle-Back Exhaust Suite (D660-0098) delivers an unprecedented upgrade for the BMW G42 M240i, granting this potent B58 platform the quad-tip distinction and aggressive sound befitting of its performance. This system perfectly balances aggressive tone/sound and civility, a combination paramount to Dinan's ethos.
Skillfully crafted entirely of TIG welded and brushed T304 stainless steel, this exhaust features larger 76mm diameter tubing (vs. 70mm stock) for increased flow. The innovation lies in the twin valved design: Dinan integrates a second exhaust valve and actuator to the opposing side, ensuring even flow and symmetry regardless of valve position. When open, the enlarged 76mm valves (30% less restrictive than OE) bypass the muffler, mimicking an awe-inspiring straight-pipe solution with a deeper, meatier tone. The visual statement is made by four massive 4" (102mm) double-walled tips, available in polished stainless steel or black ceramic coated finishes, perfectly filling the factory valance.
Performance & Sound Highlights:
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Maximum Gains: Achieves gains of +6 HP and +5 LB-FT of torque @ 6600 RPM.
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Twin Valved Design: Adds a valve and actuator to the opposing side, promoting even flow and perfect symmetry, while retaining computer-controlled sound adjustment via M-Drive settings.
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Unleashed Sound: Delivers an enjoyably louder, sportier sound with a deeper, meatier tone when valves are open.
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Weight Reduction: 4 pounds lighter than the stock system.
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Optimized Flow: Features larger 76mm piping (vs. 70mm stock) and twin 76mm valves that are 30% less restrictive than the OE valve.
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Quad Tips Aesthetic: Features Quad 4" diameter clamp-on, straight cut tips (polished or black ceramic coated) for a signature M-Performance look.
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No Drone: Utilizes numerous drone abatement technologies to ensure the intimate nature of the interior is retained.
Product Contains:
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(1) Dinan Valved Axle-Back Exhaust System
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(4) 4" (102mm) Clamp-On Tips (Polished Stainless Steel OR Black Ceramic Coated)
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All Necessary Mounting Hardware
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