SKU: 37850105249

For BMW 550i 11-15 Free Flow 304 SS Axle-Back Exhaust System w Quad Rear Exit

Sale price$1079.97 Regular price$1199.97
Save 10%

Pay in installments of $299.99 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 23 - Sep 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

For BMW 550i 11-15 Free Flow 304 SS Axle-Back Exhaust System w Quad Rear ExitOverview: 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: 37850105249

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 10 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
stephanie davis
Houston, US
★★★★★ 4
Four Stars
Format: Paperback
Great condition
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2017
B
babsmith
Carnegie, US
★★★★★ 4
Some of the questions are hard to answer. This ...
Format: Paperback
Some of the questions are hard to answer. This book is written more for the Christian who has not been saved for very long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 11, 2014
L
Verified Purchase
Leighann Morgan
Birmingham, US
★★★★★ 5
Fantastic Treats!
Size: 1.15 Pound (Pack of 1)
My dog absolutely loves these treats. Some days that is all she will eat! They are always fresh and gets delivered on time every three weeks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
S
Verified Purchase
Sally Guo
Boise, US
★★★★★ 5
Best dog treats
Size: 1.15 Pound (Pack of 1)
My dog loves it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
C
Verified Purchase
ConsumerReviewerAmber
Omaha, US
★★★★★ 5
10 out 10 give 5 stars. The best treat there is.
Size: 1.15 Pound (Pack of 1), Size: 1.15 Pound (Pack of 1)
Need a break from your pack? Lol They love them so much I can say Stop - no wing treat - when I am working like organizing boxes and they are so nosy and love to 'help' opening them up. These take a while to finish and are made of healthy stuff. They have proved safe for my 5 pound weiner to 25 pound one. 10 out of 10 love these! They are very expensive and they like the other brand at half price as much. One weiner dog likes the cheaper ones better. With a couple dogs I would just get these the comparable brand smells funny. No diarrhea even when I let them have 4 each.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026

recommand products