SKU: 69333060916

Dinan Free Flow Axle-Back Exhaust - 2012-2016 BMW M5 - D660-0044-BLK

Sale price$1057.47 Regular price$1174.97
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

Dinan Free Flow Axle-Back Exhaust - 2012-2016 BMW M5 - D660-0044-BLKOverview: Dinan's Free Flow Axle Back exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points. Dyno tuned for maximum exhaust flow with minimum backpressure, this system is designed to provide a more aggressive sound under acceleration while reducing drone inside the vehicle, thanks to Dinan's exclusive Helmholtz Chamber and Butterfly Valve technologies.

Overview:

Dinan's Free Flow Axle-Back exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points. Dyno tuned for maximum exhaust flow with minimum backpressure, this system is designed to provide a more aggressive sound under acceleration while reducing drone inside the vehicle, thanks to Dinan's exclusive Helmholtz Chamber and Butterfly Valve technologies. The exhaust gasses exit through larger laser engraved ultra durable polished, or ceramic black, quad tips. Every Dinan product comes with our industry-exclusive factory matching new car bumper to bumper warranty and is designed and tested in Morgan Hill, California and can be purchased and installed at any Dinan Approved BMW dealership nationwide.

Features:

  • More Power: +8 HP
  • Helmholtz chamber and butterfly valve technology incorporated to remove drone
  • "Straight through" canister design
  • Enjoyably louder, throatier and deep sound
  • Quad 3.5" black ceramic coated, or polished stainless, laser engraved exhaust tips
  • 100% 304 stainless steel construction
  • Uses the factory brackets and hangers for a factory-like fitment

Application:

Year Make Model Submodel Engine Size
2012 - 2015 BMW M5 4.4L V8

Specs:

Brand Dinan
Dinan Point Value 3
Emission Code 5
Height 11
Labor Time (Hours) 1.9
Length 48
Material 304 Stainless Steel
Max HP Gain 8
Product Type Axle-Back Exhaust
Sound Level Aggressive / Moderate
System Type Axle-back
Warning California Proposition 65
Weight 62.7
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: 69333060916

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Marvin V.
Massapequa, US
★★★★★ 5
La talla excelente
Size: Medium, Color: Stone
Buena tela
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Reviewed in the United States on May 18, 2026
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denny aaron turlin
Dallas, US
★★★★★ 5
Nice suit for a low cost
Size: X-Large, Color: Black
Perfect, true size! I don’t think you could get it a better suit for the price. Lots of compliments.
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Reviewed in the United States on May 27, 2026
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Bling Xpress
Omaha, US
★★★★★ 5
True as advertised
Size: X-Large, Color: Wine Red-2, Size: X-Large, Color: Wine Red-2
Great fit, true to size. I am 6'2" 217 lbs and bought the XL. The color is just as expected and the cut feels and looks tailored. This suit looks like aand feels expensive while being extremely budget friendly.
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Reviewed in the United States on November 16, 2025
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Billy Griffin
Port Orchard, US
★★★★★ 4
5’-11”, 185 lbs, Size- Large
5”-11”, 185 lbs, size Large. Suit jacket fits good and has some weight to it. My chest is a little bigger proportionally for my size but if I go with a size up, the jacket would be too big. Vest fits good but appears to be XL though it is labeled L. Not a big deal. Pants are also a good fit. Waistband is not too tight or too loose around my waist. Pant length is a little long but still a good fit. I normally wear 34x34 pants.
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Montrey T.
Alexandria, US
★★★★★ 5
Church
Size: X-Large, Color: Black-2
Great look. Great quality.
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Reviewed in the United States on May 15, 2026

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