SKU: 31268984941

Dinan D660-0075-BLK Axle-Back Exhaust Muffler G30 fits 2018+ BMW M550i xDrive

Sale price$1169.97 Regular price$1299.97
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Description

Dinan D660-0075-BLK Axle-Back Exhaust Muffler G30 fits 2018+ BMW M550i xDriveOverview: The G30 M550i exhaust ushers in a new era of Dinan exhaust design. To date, Dinan has been synonymous with welded on, thin walled tips and a philosophy of exuding a civilized note when you want it to be, and a pleasantly aggressive one under hard acceleration. While the mantra is maintained, albeit tweaked with the emergence of mid pipes and resonator deletes to those who want an even more aggressive sound, the styling of the tips is being

Overview:

The G30 M550i exhaust ushers in a new era of Dinan exhaust design. To date, Dinan has been synonymous with welded on, thin-walled tips and a philosophy of exuding a civilized note when you want it to be, and a pleasantly aggressive one under hard acceleration. While the mantra is maintained, albeit tweaked with the emergence of mid-pipes and resonator deletes to those who want an even more aggressive sound, the styling of the tips is being drastically transformed. The new massive 4" diameter tips on the M550i exhaust are the biggest we have done thus far in addition to being double-walled the polar opposite of our normal thin-walled style. Perhaps most importantly however is the new tips are clamp-on. Not welded as in the past, so they can be easily swapped to new styles or replaced as the need arises. Internally, the exhaust is typical of other Dinan exhausts and is designed to improve exhaust flow by reducing back pressure, resulting in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. This is partly courtesy of the retained computer-controlled exhaust valves that limit noise during low-speed driving and open fully during high-load conditions to allow free flow. Like all Dinan exhausts, our M550i Free Flow Axle-Back Exhaust is engineered to reduce low-RPM drone so the cabin of the vehicle is still intimate and not drowned in an excessively loud tone. In fact, on the G30 M550i equipped with a Dinan exhaust, you will be astounded at how eerily quiet it is in the cabin. That is quickly changed however when exiting the vehicle and being witness to the sporty luxury sedan revving its stout V8 engine with the exhaust valves wide open. Blissfully bellowing a sweet deep tone that begs for more is the reward. When you succumb to those desires the throaty note at full load is even more rewarding letting all those around you know your M550i is seriously capable yet dignified at the same time. A new era of Dinan exhausts is upon us and they are marked with larger than life replaceable tips.

Features:

  • More Power: + 8 HP @ 6600 RPM, + 6 LB-FT @ 6600 RPM
  • Drone abatement technologies used to reduce cabin resonance
  • Enjoyably louder, sportier sound
  • Four massive 4" diameter clamp-on, double-walled, polished or ceramic black, laser engraved exhaust tips
  • Computer controlled exhaust valves are retained and limit noise during low speed driving and open fully during high-load conditions
  • 100% 304 stainless steel construction
  • Easy bolt-on installation with included mounting hardware

Application:

Year Make Model Submodel Engine Size
2018 BMW M550i xDrive Base 4.4L V8

Specs:

Brand Dinan
Dinan Point Value 3
Emission Code 5
Height 16
Labor Time (Hours) 1.9
Length 66
Material 304 Stainless Steel
Max HP Gain 8 @ 6600 RPM
Max Torque (lb-ft) Gain 6 @ 6600 RPM
Product Type Axle-Back Exhaust
Sound Level Aggressive / Moderate
System Type Axle-back
Warning California Proposition 65
Weight 73
Width 30
Shipping Notes
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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: 31268984941

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4.6 ★★★★★
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Sue
Birmingham, US
★★★★★ 1
Total waste of money
Color: Classic, Size: L 3.94 in (10 cm)
I seldom write reviews, but save your money as far as I’m concerned. Maybe mine was faulty. I don’t know. But it’s hard as a rock and too big for to my Australian Shepherd to get her teeth around. It barely made a noise. Maybe I misunderstood the description, but I bought it for her because she’s blind and yet loves to play fetch so I thought it was going to make enough noise for her to find it, but it was a total bust at least for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
D
Verified Purchase
Dean Law
Carnegie, US
★★★★★ 4
Nice for play
Color: Classic, Size: XL 5.51 in (14 cm)
Work as expected but only lasted for about an hour
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
T
Verified Purchase
Toy Lady
Massapequa, US
★★★★★ 5
It is sturdy plastic
Color: Classic, Size: XL 5.51 in (14 cm)
The dogs love it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
M
Verified Purchase
Mustang Sally
Grantham, US
★★★★★ 3
Very Disappointing
Color: Classic, Size: S 3.14 in (8 cm)
The ball is a hard plastic; not flexible at all and uncomfortable for my dog to pick up. It makes NO NOISE while rolling across the floor. I bought it for my newly blind dog because other dog owners said their blind dogs can track the squeaky noise and follow the ball. How... when it doesn't make the noise it's supposed to? It works only if I shake it, totally defeating the purpose. It would be difficult for my dog to chew on the hard plastic, so durability seems pretty good. It's also a nice looking toy, and I think it's safe, as there are no loose parts and the squeaker would be difficult to get to for most dogs. My dog WANTS to enjoy it, but she can't.
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Reviewed in the United States on May 14, 2026
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Verified Purchase
Laurie
Draper, US
★★★★★ 5
Dog loves it
Color: Classic, Size: XS 2.75 in (7 cm)
My min pin loves this ball. Only negative is it’s a little too big for her but she manages to still pick it up
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Reviewed in the United States on May 12, 2026

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