BMW M4 Performance Exhaust - Dinan - Valved Axle Back - Polished - `21-`26
BMW M4 Performance Exhaust - Dinan - Valved Axle Back - Polished - `21-`26
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BMW M4 Performance Exhaust - Dinan - Valved Axle Back - Polished - 2021–2026. T304 stainless system that delivers a deeper tone while preserving daily comfort via factory valve control.
Developed on the G8x, tubing grows to 76 mm (from 70 mm) for freer flow and lower backpressure. Closed valves route through the Dinan muffler for subdued cruising; open valves bypass for a near straight-through path. TIG-welded, brush-finished, with quad 4.5 in polished, laser-etched tips. About 6 lb lighter than stock and capable of up to +6 hp and +5 lb-ft.
Features
- Reuses OEM valve actuators; tone via M settings
- 100% T304 stainless, TIG welded
- Drone abatement reduces cabin resonance
- Factory-like fit with included hardware
Questions or planning an install? We offer installation and customization in Austin, TX and the Los Angeles, CA area. Call 512-982-9393 (TX), 562-981-6800 (CA).
Buying multiple items? Ask about shipping discounts. We install on premises at both locations.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Need Assistance?
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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!
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