Exhaust› Exhaust Pipes, Systems and Components
Dinan
FREEFLOW EXHAUST F30 340I F32 440I
SKU: D00G D660-0055
Moderate — 2–4 hours
Description
Part #: D660-0055
Dinan engineers designed the F30 340i and F32 440i exhaust to improve 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 hard acceleration. Not only is the tone improved but the additional burbles and pops that come with it are simply intoxicating. Dinan also incorporates a Helmholtz chamber design that reduces resonance or"drone" at low RPM.
Features:
- More Power: +6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM
- Helmholtz chamber to reduce drone
- Enjoyably louder, sportier sound
- Twin 89mm (3.5") laser engraved, polished or ceramic blackexhaust tips
- 100% 304 stainless steel construction
- Uses the factory brackets and hangers for a factory-like fitment
Stainless Steel - Polished Tips - F30/F32
MIA's Description
Fitment
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Available on iOS & Android
Specifications
| Brand | Dinan |
| Part Number | D00G D660-0055 |
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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.
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