Dinan

Dinan Free Flow Axle-Back Exhaust - 2001-2006 BMW M3

Part # D660-4604 Be the first to write a review

Stainless Steel - Black Tips - E46

Dinan Free Flow Axle-Back Exhaust - 2001-2006 BMW M3

Estimated Ship Date: 07/24/2026
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If you've been searching for a truly high-performance Axle-Back exhaust for your M3 look no further. Dinan's unique muffler design effectively reduces back-pressure for improved flow, resulting in measurable power gains. Manufactured from 304 stainless steel inside and out for superior resistance to corrosion as well as a significant reduction of weight. And from those aggressive-looking ceramic-coated tips flows an exhaust note that will be music to the driving enthusiast's ears. The Dinan exhaust delivers exactly what the M3 owner demands in a performance muffler; increased power, reduced weight, a look that means business and the throaty exhaust note you'd expect from an M3.

Features:

  • More Power: + 7 HP @ 8000 RPM + 5 LB-FT @ 5000 RPM (w/ software)
  • Drone abatement technologies used to reduce cabin resonance
  • Enjoyably louder, sportier sound
  • Quad 3" black ceramic coated and laser engraved exhaust tips
  • 15 lbs. lighter than stock (43 lbs. vs. 58 lbs.)
  • 100% 304 stainless steel construction
  • Uses the factory brackets and hangers for a factory-like fitment
Body MaterialT304 Stainless Steel
Brand Dinan
CategoryExhaust
Clamps IncludedYes
Dinan Point Value3
Emission Code5
Exhaust Tip Quantity4
FinishBrushed
Grade TypePerformance
Hangers IncludedYes
Height11
Labor Time (Hours)1.1
Length48
MaterialT304 Stainless Steel
Max HP Gain7 @ 8000 RPM
Max Torque (lb-ft) Gain5 @ 5000 RPM
Muffler QuantityN/A
Pipe MaterialT304 Stainless Steel
Product TypeAxle-Back Exhaust
Sub CategoryExhaust and Tail Pipes
Weight58.6
Width30
UPC813725021935
Part NumberD660-4604
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Stage 2 Engine Software recommended for optimum performance and drivability.
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