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]
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SKU: 31268984941

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C.J.
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★★★★★ 5
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Size: Small: 24" x 24"
Love this pad . My little girl loves it too. No messes to cleanup just change the pad and it’s all good…
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Reviewed in the United States on May 3, 2026
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Larry Swafford
Lexington, US
★★★★★ 5
Protects floors
Size: X-Large: 28" x 34"
I love these pee pad holders. My dog goes near the edge of the pad and the urine gets on my hardwood floors. With these pads the edges of the pee pad holder catches the urine before it gets on the floors. It is very easy to clean the pad holder. I am so thankful it protects my floors!
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Reviewed in the United States on January 5, 2026
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Amazon Customer
Lowell, US
★★★★★ 4
Works well with the pads. Keeps them from getting bunched up all over the floor.
Size: Small: 24" x 24"
It was a nice idea, but my dogs chewed it up. If you don't have a chewer, then it's really nice.
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Reviewed in the United States on May 24, 2025
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ArkansasLMT
Carnegie, US
★★★★★ 5
Saved my sanity
Size: Small: 24" x 24"
I thought I knew everything about cats, but when my 14 year old cat stopped using the litter box, I could not fix it. I did persuade her to start using puppy pads but the problem was she would pee toward the edge and it always got on the floor. Or, defying everything I know about reality, she would find a way to pee UNDER the puppy pad. I asked ChatGPT for advice and it recommended these. They fixed the problem by 80% and I'll take it! These mats help a ton. She still gets some pee on the floor, but it's not the huge problem it used to be. The edge on the mat keeps it contained. And enzymatic cleaner works its magic on the floor. The clips that go on the edges are kinda fragile, but that's why they give you extras.
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Reviewed in the United States on February 10, 2026
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Ilein
Draper, US
★★★★★ 1
Not Leak Proof
Size: X-Large: 28" x 34"
horrible do not buy! leaks threw and caused a permanent stain and smell. thought it was good but after a week i noticed the smell and lifted up the mat there was complete pee under.
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Reviewed in the United States on April 12, 2026

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