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Dinan D660-3946 Stainless Steel - Polished Tip - w/ M-Technic Bumper - E39 Dinan D660-3946
$799.95
Dinan's Free Flow Axle-Back Exhaust for the 540i equipped with the M-Technic bumper provides power gains without the excessive noise associated with typical ''performance'' mufflers. The Dinan exhausts feature rigid...
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Dinan's Free Flow Axle-Back Exhaust for the 540i equipped with the M-Technic bumper provides power gains without the excessive noise associated with typical ''performance'' mufflers. The Dinan exhausts feature rigid and durable muffler cases manufactured from 20 gauge 304 stainless steel for optimum corrosion resistance. Internally, the systems feature Dinan's Tuned Resonance Chamber Technology providing the optimum balance between maximum power gains and a civilized, yet sporty exhaust note. The Dinan exhausts also provide substantial weight reduction compared to the stock mufflers. The mufflers weigh in at 18.5 lbs. compared to the stock systems at 34 lbs. Single oval polished stainless steel exhaust tip give the cars a tasteful performance look as well.
Specifications:
| Brand | Dinan |
| Category | Exhaust |
| Dinan Point Value | 3 |
| Emission Code | 5 |
| Height | 11 |
| Labor Time (Hours) | 1.5 |
| Length | 48 |
| Max HP Gain | 7 @ 6500 RPM |
| Max Torque (lb-ft) Gain | 6 @ 6500 RPM |
| Product Type | Axle-Back Exhaust |
| Sub Category | Exhaust and Tail Pipes |
| Warning | California Proposition 65 |
| Weight | 34.9 |
| Width | 30 |
| Description_INV | OBS FREEFLOW EXHAUST E39 540 M-TECH |
| Description_ASC | Only compatible with vehicles equipped with the M-Technic Rear Bumper. |
| Description_DES | Dinan Free Flow Axle-Back Exhaust - 1997-2003 BMW 540i |
| Description_EXT | Stainless Steel - Polished Tip - w/ M-Technic Bumper - E39 |
| Description_MKT | Dinan's Free Flow Axle-Back Exhaust for the 540i equipped with the M-Technic bumper provides power gains without the excessive noise associated with typical ''performance'' mufflers. The Dinan exhausts feature rigid and durable muffler cases manufactured from 20 gauge 304 stainless steel for optimum corrosion resistance. Internally, the systems feature Dinan's Tuned Resonance Chamber Technology providing the optimum balance between maximum power gains and a civilized, yet sporty exhaust note. The Dinan exhausts also provide substantial weight reduction compared to the stock mufflers. The mufflers weigh in at 18.5 lbs. compared to the stock systems at 34 lbs. Single oval polished stainless steel exhaust tip give the cars a tasteful performance look as well. |
| Description_FAB | More Power: + 7 HP @ 6500 RPM + 6 LB-FT @ 6500 RPM (w/ software) |
| Description_FAB | Drone abatement technologies used to reduce cabin resonance |
| Description_FAB | Enjoyably louder, sportier sound |
| Description_FAB | Single polished oval and laser engraved exhaust tip |
| Description_FAB | Over 15 lbs. lighter than stock (18.5 lbs. vs. 34 lbs.) |
| Description_FAB | 100% 304 stainless steel construction |
| Description_FAB | Uses the factory brackets and hangers for a factory-like fitment |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1997 | BMW | 540i | Base | |
| 1998 | BMW | 540i | Base | |
| 1999 | BMW | 540i | Base | |
| 2000 | BMW | 540i | Base | |
| 2001 | BMW | 540i | Base | |
| 2002 | BMW | 540i | Base | |
| 2003 | BMW | 540i | Base |
Shipping Information
We offer FREE shipping on all orders within Canada. Most orders ship within 1-2 business days.
Standard delivery typically takes 3-7 business days depending on your location.
Returns Policy
We accept returns within 30 days of purchase. Items must be in original condition with all packaging.
For returns or exchanges, please contact our customer service team.

