BMW M340i Performance Exhaust - Dinan - Axleback, Quad Tips, T304 Stainless Steel, Black Ceramic Coated - Black - `20-`26
BMW M340i Performance Exhaust - Dinan - Axleback, Quad Tips, T304 Stainless Steel, Black Ceramic Coated - Black - `20-`26
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BMW M340i Performance Exhaust — Dinan Axleback, Quad Tips, T304 Stainless, Black Ceramic (2020–2026). Adds a deeper tone, quad 4-inch black tips, and retains factory valve control.
Built for the G20 M340i, it runs 76 mm free‑flow tubing (vs 70 mm stock) to a TIG‑welded 304 stainless canister. Dinan adds a second electronic valve for balanced flow. Open valves sound assertive; closed, gases route through the muffler for calm cruising. Bolt‑on fitment with gains up to +6 hp and +5 lb‑ft at 6600 rpm.
Features
- T304 stainless; 76 mm piping; TIG‑welded canister
- Twin 76 mm computer‑controlled valves; OE actuator reused
- Quad 102 mm (4 in) black ceramic‑coated, double‑walled tips
Questions or ready to schedule? Call our Austin, TX or Los Angeles, CA area teams for guidance, installation, and customization at 512-982-9393 or 562-981-6800.
If 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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562-981-6800 (Signal Hill, CA)
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