SKU: 34400857727

Dinan D660-4602 Free Flow Axle-Back Exhaust Muffler E46 for BMW 325i/330i

Sale price$435.58 Regular price$483.98
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Description

Dinan D660-4602 Free Flow Axle-Back Exhaust Muffler E46 for BMW 325i/330iOverview: Dinan's Free Flow Axle Back Exhaust for the 3 series models provides increased flow for 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 which provides the optimum balance between maximum

Overview:

Dinan's Free Flow Axle-Back Exhaust for the 3 series models provides increased flow for 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 which provides the optimum balance between maximum power gains and a civilized, yet sporty exhaust note. The Dinan exhaust also provides substantial weight reduction compared to the stock muffler weighing in at just over 17 lbs. compared to the stock system at 28 lbs. Dual 2.5-inch diameter polished stainless steel exhaust tips give the cars a tasteful performance look as well.

Features:

  • More Power: + 5 HP @ 6500 RPM + 4 LB-FT @ 6500 RPM (w/ software)
  • Drone abatement technologies used to reduce cabin resonance
  • Enjoyably louder, sportier sound
  • Dual 2.5" polished and laser engraved exhaust tips
  • 11 lbs. lighter than stock (17 lbs. vs. 28 lbs.)
  • 100% 304 stainless steel construction
  • Uses the factory brackets and hangers for a factory-like fitment

Application:

Year Make Model Submodel Engine Size
2001 - 2006 BMW 325Ci 152/2.5L L6
2001 - 2005 BMW 325i 152/2.5L L6
2001 - 2005 BMW 325xi 152/2.5L L6
2001 - 2006 BMW 330Ci 3L L6
2001 - 2005 BMW 330i 3L L6
2001 - 2005 BMW 330xi 3L L6

Specs:

Brand Dinan
Dinan Point Value 3
Emission Code 5
Height 11
Labor Time (Hours) 1.5
Length 48
Material 304 Stainless Steel
Max HP Gain 5 @ 6500 RPM
Max Torque (lb-ft) Gain 4 @ 6500 RPM
Product Type Axle-Back Exhaust
Sound Level Aggressive / Moderate
System Type Axle-back
Warning California Proposition 65
Weight 39.3
Width 30
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34400857727

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4.0 ★★★★★
Based on 1812 reviews
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Verified Purchase
Fivestarr
Draper, US
★★★★★ 5
exact fit
working good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
J
Verified Purchase
Joe Cruz
Whiting, US
★★★★★ 5
Fast delivery.
Great product. OEM spark plugs.
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Reviewed in the United States on January 5, 2026
A
Verified Purchase
Aspen Valdez
Birmingham, US
★★★★★ 5
Fits 2011 335xi n55 prefect
Fits my 2011 335xi n55 engine perfectly. Comes on and off easily and gets the filter loose quickly. Amazing quality
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Reviewed in the United States on March 15, 2026
C
Verified Purchase
Clint
Massapequa, US
★★★★★ 5
Works perfect for BMW S63 engine.
I used this to change the oil on my BMW M8 with the S63 engine. It was a perfect fit. It extended far enough onto the filter housing to be quite secure with no risk of slipping off and stripping the housing. It was snug on the housing and did not bind up due to having a loose fit. The tool feels well-built and I suspect it will outlive me given my occasional personal use. It would still probably hold up well even for daily shop use as long as it was not abused (repeatedly dropped, slammed around, etc).
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Reviewed in the United States on September 8, 2025
C
Verified Purchase
Chad altenbach
New York, US
★★★★★ 5
Made well and great fit
Fits perfectly and is made well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026

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