BMW M3 Performance Exhaust – Dinan High Flow Middle with X-Pipe (2021–2026). This precision-built mid-pipe replaces the factory center section to improve flow and deliver a louder, smoother, fuller exhaust note while keeping the OEM rear muffler.

Engineered for the G80 M3 and G82/G83 M4, this section removes the hydro-formed stock center from the secondary catalysts to the axle-back, deleting both resonators. Constructed from 76 mm (3 in) T304 stainless and finished with a hand-made, mandrel-bent X-pipe, it reduces restriction and balances pulses across both banks for cleaner sound. The assembly is about 5 lb lighter than stock (17 lb vs 22 lb) and installs with factory-like fitment using the included hardware. Confirmed to fit with the stock (including M Performance) rear section and the Dinan Free Flow Axle Back; fitment with other axle-backs is not guaranteed.

Features

• 100% T304 stainless steel construction
• 76 mm (3 in) mandrel-bent tubing replaces 70 mm (2.75 in) stock
• Hand-made X-pipe for reduced restriction and balanced tone
• Deletes mid-resonators for increased volume
• Approximately 5 lb weight savings vs. stock mid-section
• Factory-like fitment; mounting hardware included
• Works with stock and Dinan Free Flow axle-back systems

Have questions or planning a build? Call our Austin, Texas or Los Angeles, California area teams for expert guidance, installation, and customization services: 512-982-9393 (TX) or 562-981-6800 (CA).

Considering multiple items? Contact us for shipping discounts. We install on premises at both locations.

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