BMW M5 Performance Exhaust - Dinan - Axleback, Freeflow - Polished - `18-`23
BMW M5 Performance Exhaust - Dinan - Axleback, Freeflow - Polished - `18-`23
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BMW M5 Performance Exhaust – Dinan Freeflow Axleback, Polished (2018–2023). Sharpens sound and improves flow for the F90.
100% T304 stainless, TIG‑welded and brushed, with 83mm tubing (vs 80mm stock) feeding a free‑flow muffler that uses absorption/reactive tech to reduce backpressure. Factory computer‑controlled valves stay in place for quiet cruising and a stronger note under load, with tuning aimed at reduced low‑RPM drone. Quad 4 in. polished, double‑walled, laser‑engraved tips.
Features
- Fits 2018–2023 BMW M5 (F90)
- Gains up to +6 hp/+5 lb‑ft @ 6600 rpm
- Twin 76mm valves ~30% less restrictive
- Bolt‑on install; hardware included
- Refined, sportier tone with reduced drone
Have questions or ready to book? Call Austin, TX at 512-982-9393 or Los Angeles, CA area at 562-981-6800. We offer installation and customization at both locations. Buying multiple items? Contact us for possible shipping discounts; we install on premises at both locations.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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