Dinan Free Flow Stainless Exhaust Systems for 2018-2023 M550I XDRIVE - D660-0075

Name: Dinan Free Flow Stainless Exhaust Systems
Brand: Dinan
SKU: DNN-660-0075
Price: 2599.95 USD
Availability: InStock
Rating: 0 (0 reviews)

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Part Number: DNN-660-0075

$2,599.95

Dinan Free Flow Stainless Exhaust Systems

Exhaust Systems, Free Flow Stainless, Rear Axle-back, Dual In/Four Out, Stainless Steel, Natural, Split Rear Exit, Polished Tips, BMW, 4.4L, Kit
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Dinan Free Flow Stainless Exhaust Systems for 2018-2023 M550I XDRIVE - D660-0075

DNN-660-0075

Not Yet Reviewed

Part Number: DNN-660-0075

Estimated Ship Date: Nov 12, 2026

$2,599.95

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Overview

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Q&A

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Estimated Ship Date: Nov 12, 2026 Would you rather pick it up?

Overview

Brand:

Dinan

Manufacturer's Part Number:

D660-0075

Part Type:

Exhaust Systems

Product Line:

Dinan Free Flow Stainless Exhaust Systems

Summit Racing Part Number:

DNN-660-0075

Item Number:

5156166

UPC:

813725024653

System Material:

304 stainless steel

System Style:

Rear axle-back

Exhaust Type:

Dual in/Four out

Exit Location:

Split rear

System Finish:

Natural

Catalytic Converter(s) Included:

Intermediate Pipe Diameter (in.):

2.75 in.

Muffler Included:

Yes

Muffler Quantity:

One

Muffler Configuration:

Dual inlet/Dual outlet

Muffler Style:

Chambered

Muffler Material:

304 stainless steel

Muffler Color:

Natural

Hardware Included:

Yes

Tailpipe Diameter (in.):

2.75 in.

Tip Included:

Yes

Tip Outlet Size (in.):

4.00

Tip Quantity:

Tip Shape:

Round

Tip Cut:

Straight

Tip Edge Style:

Beveled edge, double-wall

Tip Material:

304 stainless steel

Tip Color:

Polished

Remanufactured:

Quantity:

Sold as a kit.

Special Attention:

It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.

Dinan Free Flow Stainless Exhaust Systems

Dinan offers a wide range of exhaust upgrades for imports like BMW, Audi, and Volkswagen. Their free flow stainless exhaust systems are precision-engineered for optimum power gains—with a civilized, sporty exhaust note that's appropriately aggressive at wide-open throttle. Plus, there's no irritating low-rpm "drone" that is common with so many other aftermarket mufflers. These free flow systems are manufactured from stainless steel, inside and out, for maximum resistance to corrosion and reduced weight (by 30 percent). They utilize the OE brackets and hangers for mounting in factory-like fashion. Order the Dinan free flow stainless exhaust system designed for your vehicle application.

Applications