BMW M4 Performance Exhaust - Dinan - High Flow X-Pipe - `15-`20. This precision mid-pipe sharpens the exhaust note and improves flow on the F8x M3/M4 while retaining the factory catalytic converters.

Dinan’s High Flow X-Pipe replaces the factory center section after the secondary cats, removing the large resonator for freer flow and a deeper tone. It uses 100% T304 stainless with straight-through, mandrel-bent 2.75 in (70 mm) tubing and a precision X designed for maximum flow. Kit includes OE-quality clamps, flanges, and all hardware for bolt-on installation. Note: resonator delete can increase cabin noise; review sound clips first. Confirmed with the Dinan Free Flow Axle-Back and stock (non-M Performance) systems; fitment with other axle-backs is not guaranteed.

Features

• Mandrel-bent 2.75 in (70 mm) T304 stainless X-pipe crossover (not stamped)
• Replaces stock hydro-formed 65 mm mid tubing
• Deletes resonators between catalysts and rear muffler
• OE-quality clamps, flanges, and mounting hardware included
• Bolt-on installation

Questions or ready to plan your setup? Call Austin, TX at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization services at both locations and can help you select the right configuration.

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

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