Dinan Free Flow Axle-Back Exhaust System for BMW 540i (non M tech) 1997-2003

Special Note: Not applicable for cars equipped with M-Technic rear bumper.

The Dinan Free Flow Axle-Back Exhaust for the BMW 540i is designed to enhance performance while providing a refined sound profile, avoiding the excessive noise often associated with typical performance exhausts. This system emphasizes quality, durability, and an improved driving experience, making it an excellent upgrade for enthusiasts.

Key Features:

• Performance Gains:

  • Power Increase:
    • +7 HP @ 6500 RPM
    • +6 LB-FT @ 6500 RPM (with software)

• Tuned Resonance Chamber Technology: This unique feature allows for an optimal balance between enhanced power output and a civilized, sporty exhaust note, making for a more enjoyable driving experience.

• Lightweight Construction: The Dinan exhaust system significantly reduces weight, weighing in at 18.5 lbs compared to the stock system's 34 lbs, resulting in a 15.5 lbs weight reduction.

• Durable Materials: Constructed from 20 gauge 304 stainless steel, the muffler cases offer superior corrosion resistance, ensuring longevity and performance.

• Aesthetic Appeal: Features dual 3-inch diameter polished stainless steel exhaust tips, which are laser engraved with the Dinan logo, providing a tasteful and sporty appearance.

• Drone Abatement Technologies: Engineered to minimize cabin resonance, this system helps maintain a comfortable interior sound level, particularly during low RPM driving.

• Factory-like Fitment: The exhaust utilizes factory brackets and hangers for easy installation, ensuring a perfect fit without the need for modifications.