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Exhaust› Exhaust Pipes, Systems and Components
Dinan
FREEFLOW EXHAUST G20 330I
SKU: D00G D660-0091
Moderate — 2–4 hours
Overview
It utilizes OE brackets and hangers for a factory-like fitment and includes all necessary mounting hardware.
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Part #: D660-0091
Delivering on the promise of performance (and sound) without sacrifice, the Dinan G20 330i / G22 430i exhaust not only grants the B46/B48 4-cylinder improved exhaust flow by reducing back pressure but also imbues the platform with a deeper and fuller note, free of any added drone or other negative side effects commonly associated with aftermarket exhausts. The goal of OEM+ and then some, realized.
Features:
- Maximum gains of +4 HP and +3 ft-lb of torque
- Enjoyably louder, sportier sound
- Drone abatement technologies used to reduce cabin resonance
- Dual 4" (102mm) double-walled, polished clamp-on tips with laser engraved Dinan logo
- Larger diameter piping for increased flow (85mm to dual 60mm vs. 85mm to dual 83mm)
- 100% 304 Stainless Steel construction
- Retains factory valve control
- Factory-like fitment with included mounting hardware
Stainless Steel - Polished Tips - G20/G22
Vehicle Symptoms
- Stock exhaust too quiet and boring
- Want a sportier, louder exhaust note
- Looking for weight reduction and performance
- Factory exhaust tips are too small and dull
- Desire a more aggressive appearance at the rear
Relevant Conversations
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- Dinan exhaust install time and difficulty
- replace factory exhaust for better sound
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
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Specifications
| Brand | Dinan |
| Part Number | D00G D660-0091 |
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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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