BMW M4 Performance Exhaust - Dinan - Axle Back, Valved - Black - `21-`26
BMW M4 Performance Exhaust - Dinan - Axle Back, Valved - Black - `21-`26
Available Options
Drive now, Pay later with Affirm
or with PayPal
Both options will be available upon checkout.
BMW M4 Performance Exhaust – Dinan Axle-Back, Valved, Black (2021–2026). A deeper, controlled tone and freer flow with factory valve control retained.
Engineered for the G8X, this axle-back ups tubing to 76 mm (70 mm stock) to reduce backpressure. With valves closed, flow passes through a tuned muffler using absorption and reactive tech for a subdued, richer note; when open, a near straight-through path delivers assertive volume while limiting cabin drone. Constructed from 100% T304 stainless steel and finished with quad 4.5 in double-walled, black ceramic-coated tips laser-engraved with the Dinan logo, it’s roughly 6 lb lighter than stock.
Features
- 2021–2026 BMW M3/M4 (G8X) fitment; factory-like install with included hardware
- 76 mm tubing for increased flow vs 70 mm stock
- Retains OE valve actuators; tone adjustable via M Drive
- Maximum gains up to +6 hp and +5 lb-ft
- 100% 304 stainless; quad 4.5 in black ceramic-coated tips
Questions or want installation or customization? Call our Austin, Texas shop at 512-982-9393 or our Los Angeles, California area location at 562-981-6800. We install on premises at both locations. Buying multiple items? Contact us for potential shipping discounts.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Need Assistance?
We're here to help!
Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
and get assistance from one of our sales team members!
Product ID Number: