Dinan Free Flow Axle-Back Exhaust - 2001-2006 BMW M3 | D660-4604

The Dinan Free Flow Axle-Back Exhaust (D660-4604) is a truly high-performance solution for the 2001-2006 BMW M3, designed to effectively reduce back-pressure for improved flow and measurable power gains. This unique system is manufactured from 304 stainless steel inside and out for superior resistance to corrosion, resulting in a significant 15 lbs. weight reduction compared to the stock 58 lbs. muffler.

The exhaust note flowing from the aggressive-looking black ceramic-coated tips is music to the driving enthusiast's ears. The system utilizes drone abatement technologies to provide the throaty, sporty sound you'd expect from an M3 while maintaining interior civility. This component delivers a verified power increase of +7 HP at 8000 RPM and +5 LB-FT of torque at 5000 RPM when used with Stage 2 Engine Software.

Features:

• Verifiable Power Gains: Delivers an increase of +7 HP and +5 LB-FT of torque at 8000 RPM (with software).

• Optimized Weight: Provides a substantial 15 lbs. weight reduction (43 lbs. vs. 58 lbs. stock).

• Acoustic Precision: Utilizes drone abatement technologies to provide an enjoyably louder, sportier sound without excessive noise.

• Superior Material & Construction: Built from 100% 304 stainless steel construction for superior resistance to corrosion.

• Aesthetic Excellence: Finishes with quad 3" black ceramic coated and laser engraved exhaust tips for a tasteful, aggressive look.

• Fitment Integrity: Uses the factory brackets and hangers for a guaranteed, factory-like fitment.

Product Contains:

• (1) Dinan Free Flow Axle-Back Muffler Assembly

• (4) Quad 3" Black Ceramic Coated Exhaust Tips

• (1) Complete Installation Hardware Kit

Important Note: Stage 2 Engine Software is recommended for optimum performance and drivability.

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

Installation Instructions