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Dinan Valved Axle-Back Exhaust - BMW M240i (G42) 2022-2026 - Black Tips

Dinan SKU: DNND660-0098-BLK
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The Dinan Valved Axle-Back Exhaust for the G42 BMW M240i is built entirely from TIG-welded, brushed T304 stainless steel with a quad-tip layout. Where the factory system uses a single valve and drops one tip when closed, Dinan adds a second valve so flow stays symmetric in every position. Larger 76mm tubing replaces the stock 70mm to free up flow, and the twin 76mm valves are roughly 30% less restrictive than the OE valves. Closed valves route gas into the muffler and out the inner tips for quiet cruising, while open valves feed both outer pipes for a deeper, near straight-pipe tone. Drone abatement technologies keep the cabin civil, the system runs 4 pounds lighter than stock, and peak gains reach +6 HP and +5 lb-ft at 6600 RPM.

Specifications

Type Valved axle-back exhaust (twin-valve, quad tip)
Position Rear (axle-back section)
Material 100% T304 stainless steel, TIG-welded, brushed
Tubing Diameter 76mm (vs 70mm stock)
Valves Twin 76mm, ~30% less restrictive than OE
Tips Quad 4in double-walled clamp-on, laser-engraved Dinan logo
Tip Finish Black ceramic coated
Power Gain +6 HP / +5 lb-ft @ 6600 RPM
Weight Savings 4 lb lighter than stock
Part Number D660-0098-BLK

Documents: Installation Instructions (PDF)

This part fits:

Year Make Model Submodel
2023-2026 BMW M240i Base
2022-2026 BMW M240i xDrive Base
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