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Exhaust› Exhaust Pipes, Systems and Components
Dinan
FREEFLOW EXHAUST E46 M3
SKU: D00G D660-4604
Moderate — 2–4 hours
Overview
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Part #: D660-4604
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.
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
Stainless Steel - Black Tips - E46
Vehicle Symptoms
- Stock exhaust too quiet for sporty driving
- Exhaust note lacks aggression and character
- Highway drone at cruising speeds
- Stock exhaust heavy and unsightly
- Desire for measurable power gain from exhaust upgrade
Relevant Conversations
- BMW E46 M3 exhaust upgrade recommendations
- Dinan free flow axle-back exhaust review
- E46 M3 axle-back exhaust sound clips
- Best axle-back exhaust for E46 M3
- E46 M3 exhaust drone fix aftermarket
- Dinan exhaust vs stock weight comparison
- How long to install Dinan E46 M3 exhaust
- E46 M3 Dinan exhaust install tips
- E46 M3 exhaust tips black ceramic coated
- E46 M3 performance exhaust gains dyno
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Dinan |
| Part Number | D00G D660-4604 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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