BMW X3 M Performance Exhaust - Dinan - Freeflow Axleback - Polished - 20-25. A premium axle-back for 2020–2025 X3M delivering a fuller tone with factory valve control; also fits X4M (F98).

Made from 100% 304 brushed stainless with TIG welding, this freeflow axle-back ups flow via 76 mm tubing (vs 70 mm stock). The computer-controlled valves are retained: open, they favor the outer pipes for a bolder note; closed, gases route through the muffler to the inner tips for comfort and reduced drone. Quad 114 mm double-walled polished tips use an inverted clamp neck to hide the clamp and allow longer sleeves, while the tuck-it layout keeps the view tidy. Twin 76 mm valves are about 30% less restrictive than OE, weight drops ~5 lb, and measured gains are +8 hp/+6 lb-ft at 6600 rpm.

Features

• 304 stainless, TIG-welded axle-back
• 76 mm piping; twin 76 mm valves; valve control retained
• Quad 114 mm polished, laser-engraved clamp-on tips; hidden clamp neck
• Bolt-on install with included hardware
• Approx. +8 hp/+6 lb-ft at 6600 rpm; ~5 lb lighter

Have questions or want to book installation? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer professional installation and customization at locations in Austin, Texas and the Los Angeles, California area.

Buying multiple items? Contact us for combined shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov