SKU: 41174527320

Dinan Free Flow Axle-Back Exhaust - 2011-2016 BMW 550i - D660-0036

Sale price$1057.47 Regular price$1174.97
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

Dinan Free Flow Axle-Back Exhaust - 2011-2016 BMW 550i - D660-0036Overview: Dinan's Free Flow Axle Back Exhaust improves 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 harder acceleration with zero drone. 100% stainless steel construction and exacting specifications ensure that the system fits correctly using the factory hangers and will resist corrosion for years to come. A vacuum

Overview:

Dinan's Free Flow Axle-Back Exhaust improves 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 harder acceleration with zero drone. 100% stainless steel construction and exacting specifications ensure that the system fits correctly using the factory hangers and will resist corrosion for years to come. A vacuum controlled butterfly valve is utilized to improve flow at wide-open throttle while keeping things civilized and "drone" free throughout. The design reduces overall weight as well and features 3.5'' polished, or ceramic black, tips for a tasteful high-performance look.

Features:

  • More Power: + 10 HP when coupled with engine software
  • Drone abatement technologies used to reduce cabin resonance
  • Enjoyably louder, sportier sound
  • Quad 3.5" laser engraved, polished or ceramic black 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
2011 - 2015 BMW 550i xDrive 4.4L V8
2011 - 2015 BMW 550i 4.4L V8

Specs:

Brand Dinan
Dinan Point Value 3
Emission Code 5
Height 10
Labor Time (Hours) 1.6
Length 54
Material 304 Stainless Steel
Max HP Gain 10
Product Type Axle-Back Exhaust
Sound Level Aggressive / Moderate
System Type Axle-back
Warning California Proposition 65
Weight 78
Width 29
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: 41174527320

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Tom
Bozeman, US
★★★★★ 4
Works, but reimbursement for damaged items come via Amazon Gift Card, not Cash
Just confirming that this protection plan actually works. Asurion first told me that they'd try and repair my item. Likely, they couldn't find someone to repair the type of item I bought (KVM), so they offered payment (original cost of the item) via Amazon Gift Card. Giving 4 out of 5 stars -> 4 instead of 5 because Amazon Gift Card isn't Cash. Cash is always better.
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Reviewed in the United States on June 9, 2026
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Polyphonic
San Leandro, US
★★★★★ 5
When Acer's Warranty Policy left my high and dry, Asurion Protection came to the rescue
My Acer Monitor was damaged during a brownout due to a lightning strike close to my house; Acer Customer Support told me that their warranty did not cover this sort of damage but luckily for me, Asurion Protection did. I simply mailed them the item for repairs with their shipping label, and once they realized that the item was damaged beyond repair, they emailed me an Amazon Gift Card Code with the amount spent on the monitor; I'm extremely happy that I bought their protection because without it, I would have had to pay the price of a new monitor to get my PC Setup back into commission. Many Thanks, Asurion Protection
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Reviewed in the United States on October 15, 2023
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Gerardo Medina
West Palm Beach, US
★★★★★ 5
Bad product, great service
Process was simple and easy. They couldn't repair my device but did send me the gift card within 1 business day
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Reviewed in the United States on July 14, 2025
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Dillion
Charlottesville, US
★★★★★ 1
Don't trust asurion
I first contacted Amazon for this product when I didn't receive this. I bought this back in October 22nd or 23rd with my Lenovo chromebook idea pad flex which it's now December 16th on a Friday night I have yet to receive it. I first contacted Amazon about it November 3rd they said to give asurion a week to back it up for the email delivery. Waited a couple weeks ans nothing happened, contacted Amazon and they put me on with asurion which I then revived a text through tech support saying I'll receive it soon, give them 24 hours to respond with it. Going through 2 links and 2 sites, an email verification a phone number verification and an Amazon sign in "Sorry, we are unable to find your plan." Was the response I was given after all of that. It then put me through the sign-ins again, at the very start of the last 45 minutes hence why I'm writing this. Not to mention the last month I've been trying to contact them for email delivery of my protection plan. I spent $108+ tax on the 4 year protection plan on the upgraded version of my chromebook IdeaPad, which was a gift to someome special to me. Now if It shuts down tomorrow it's not going to get the honored 4 year protection plan, warranty. The device was expensive and asurion can't even honor their own protection plans.
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Reviewed in the United States on December 17, 2022
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Amanda
Lexington, US
★★★★★ 5
Perfect sublimation paper!
Size: 8.5"x11"
The print quality is really good. I’ve had no issues so far. When sublimating, the colors are very vibrant! The paper is very great quality. Definitely worth every penny.
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Reviewed in the United States on May 26, 2026

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