BMW 330i Performance Exhaust - Dinan - Freeflow Axleback - Polished - 2016–2020. Dinan’s axle-back system improves flow and adds a mature sport sound for daily use and spirited drives.

This Free Flow design reduces back pressure and low‑RPM drone, keeping the cabin composed while the note sharpens under throttle. Built from 100% 16‑gauge 304 stainless steel, it installs easily with factory brackets and hangers. Twin 76 mm polished, laser‑engraved tips finish the system. The factory computer‑controlled valve is deleted for a consistent tone.

Features

• 100% 304 stainless, 16‑gauge
• Free Flow axle-back for improved flow
• Drone abatement to reduce cabin resonance
• Twin 76 mm polished, laser‑engraved tips
• Gains up to +4 hp/+3 lb‑ft @ 6600 rpm

Have questions or need fitment advice? Call our Austin, TX shop at 512-982-9393 or our Los Angeles, CA area location at 562-981-6800. We provide installation and customization at both locations.

Buying 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