Dinan Valved Axle-Back Exhaust - 2021-2026 BMW M3/M4 G80/G82

OVERVIEW

Give your BMW M3/M4 the voice it deserves. The Dinan Valved Axle-Back Exhaust replaces the factory rear section with larger-diameter, mandrel-bent T304 stainless steel piping and quad 4.5" (114mm) double-walled, polished clamp-on tips — delivering a deeper, more refined tone with added volume, while retaining the factory computer-controlled exhaust valves for adjustable sound via M-Drive settings.

SPECS

• Maximum gains of +6 HP and +5 lb-ft torque
• Larger diameter piping for increased flow (76mm vs. 70mm stock)
• 6 lbs lighter than stock (38 lbs vs. 44 lbs)
• Quad 4.5" (114mm) double-walled, polished stainless steel clamp-on tips with laser-engraved Dinan logo
• T304 stainless steel construction, TIG-welded, brush finished
• Retains factory exhaust valve actuators — drone abatement technology reduces cabin resonance
• Legal for use on emissions-controlled, non-emissions-controlled, and racing-only vehicles (does not affect emissions)

PARTS INCLUDED

• 1x valved axle-back exhaust (Polished or Black Ceramic Coated tips per variant)

TECH RESOURCES

• Installation Instructions (PDF)
• Pairs with the Dinan High Flow Middle Exhaust (Part# D660-0094) for additional tone/volume

PART NUMBER

• Polished Stainless Steel Tips — D660-0093
• Black Ceramic Coated — D660-0093-BLK

VEHICLE APPLICATIONS

Please confirm exact fitment for your VIN before purchase.