Dinan Free Flow Axle-Back Exhaust - 2016-2020 BMW 330i/430i | D660-0069-BLK

The Dinan Free Flow Axle-Back Exhaust (D660-0069-BLK) is a precision-engineered upgrade for the 2016-2020 BMW 330i/430i, designed to optimize performance by improving exhaust flow and reducing back pressure. This system yields a maximum performance gain of +4 HP and +3 LB-FT of torque at 6600 RPM, delivering a great sporty sound that is pleasantly aggressive under hard acceleration.

Like all Dinan exhausts, this system utilizes drone abatement technologies to reduce low-RPM drone, ensuring the vehicle's cabin remains intimate and civil. The system is built from 100% 16-gauge 304 stainless steel to resist corrosion for years to come. The factory computer-controlled exhaust valve is eliminated for maximum, free-flowing sound at all times.

Features:

• Verifiable Power Gains: Delivers a maximum performance gain of +4 HP and +3 LB-FT of torque at 6600 RPM.

• Acoustic Precision: Utilizes drone abatement technologies to reduce cabin resonance, providing an enjoyably louder, sportier sound.

• Superior Material & Construction: Built from 100% 16-gauge 304 stainless steel to resist corrosion and ensure long-term durability.

• Flow Optimized: The factory computer-controlled exhaust valve is eliminated for maximum flow and sound at all times.

• Aesthetic Excellence: Finishes with twin 76mm (3") laser engraved, black ceramic coated exhaust tips (polished stainless tips also available) for a tasteful, high-performance look.

• Fitment Integrity: Utilizes a simple bolt-on installation using the factory brackets and hangers for a guaranteed, factory-like fitment.

Product Contains:

• (1) Dinan Axle-Back Muffler Assembly

• (2) Twin 76mm Black Ceramic Coated Exhaust Tips

• (1) Complete Installation Hardware Kit

Warranty This product is supported by a Manufacturer's Warranty. Note: Manufacturer warranty terms are subject to change.

Installation Instructions