Dinan Valved Axle-Back Exhaust with Polished Tips for BMW M2 G87 (2023-2026)

The G87 M2 borrows much of its hardware from the G8x M3 and M4, but a few inlet-pipe bends mean their exhausts do not swap across. Dinan's D660-0100 is the M2-specific version of its G8x valved axle-back. It carries over the drone-abatement work from the larger cars, opens the tubing from 70 mm to 76 mm, and finishes in four 4.5-inch (114 mm) double-walled polished tips with laser-engraved Dinan logos. Measured gains are plus 6 horsepower and plus 5 lb-ft at 6600 rpm.

BMW's own valves and actuators stay in place, so the M drive exhaust button and drive-mode logic work as before. With the valves shut, exhaust is routed into the Dinan muffler. Absorption and reactive chambers there keep low-speed driving subdued but deeper than stock, and the flow exits through the two inner tips. Under high load the valves open, most of the gas bypasses the muffler, and the system behaves close to a straight pipe. You get a car that can leave the neighborhood quietly and still sound right on a back road.

Every section is T304 stainless steel, TIG welded and brush finished. The complete axle-back weighs 38 pounds against the factory system's 44, a 6-pound saving at the very back of the car. The large tips are sized to fill the factory diffuser cut-outs for a clean OEM-plus look. Mounting is factory-style with the supplied hardware, and Dinan lists 2.7 hours of installation labor.

Dinan catalogs this part for the 2023-2026 BMW M2, covering every U.S. model year of the G87 coupe to date. It is not for the earlier F87 M2, the G42 M240i, or the G8x M3 and M4. The black-ceramic-tip version is D660-0100-BLK. Emission code 5 applies, and the kit earns 3 Dinan points. It ships boxed at 48 x 29 x 11 inches and 59 pounds. Warranty is the remainder of the vehicle factory limited warranty (up to 4 years / 50,000 miles) or 2 years / unlimited miles, whichever is greater.

Features

• Quad 4.5-inch (114 mm) polished, double-walled, laser-engraved tips
• Plus 6 hp and plus 5 lb-ft at 6600 rpm
• 76 mm tubing versus the factory 70 mm
• 38 lb system, 6 lb lighter than stock
• Factory valves retained for M drive sound control

What's Included

• Dinan Valved Axle-Back Exhaust, Polished Tips (D660-0100)

Specifications

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.

Fitment Notes

• For the 2023-2026 BMW M2 Coupe (G87), manual or automatic.
• Not for the F87 M2, the G42 M240i, or the G8x M3 / M4, which use different inlet pipe bends.
• Factory exhaust valves and actuators are retained; tone stays selectable in the M drive settings.
• Black-tip sibling: D660-0100-BLK.