Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Exhaust› Exhaust Pipes, Systems and Components
Dinan
M550I MIDDLE EXHAUST
SKU: D00G D660-0080
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: D660-0080
The Dinan Middle Exhaust for the G30 M550i introduces a more aggressive tone and an increase in volume over the stock system. Coupled with the associated Dinan exhaust, the sound is further enhanced into a smoother, fuller and more aggressive growl that is becoming of the V8 powered sedan.
Features:
- Smoother, sportier sound
- 3" (76mm) tubing replaces stock 70mm tubing for free flow
- Deletes resonator between catalyst and rear muffler for increased volume
- Includes X-pipe crossover made from mandrel bent tubing for minimum restriction
- 100% 304 stainless steel construction
- Bolt-on installation
- Mounting hardware included
Stainless Steel - 3" - G30
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Dinan |
| Part Number | D00G D660-0080 |
Videos
2018 BMW M550i with Dinan Free Flow Exhaust, Suspension, and Stage 1 Dinantronic Software
Dinan Exhaust Install
Dinan G30 M550i Full Exhaust (X-Pipe & Axle-Back) - Sound Clip
2021 BMW M550XI Dinan Mid-Pipe
M550i RESONATOR DELETE!! REPLACED WITH X-PIPE!! BEFORE AND AFTER SOUNDS!!! 2018 BMW M550i XDRIVE
Dinan F10 535i Exhaust - Sound Clip
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy