Dinan Free Flow Axle-Back Exhaust System with Polished Tips for BMW 330i / 430i 2016-2020
Special Note: Has not yet been tested with the M-aerodynamic rear bumper so fitment is not guaranteed on that application.
Dinan’s Free Flow Axle-Back Exhaust System for the BMW 330i/430i is designed to enhance performance by reducing back pressure, which increases exhaust flow and results in +4 HP and +3 lb-ft of torque at 6600 RPM. This exhaust system provides a sporty sound that is aggressive under hard acceleration but remains civilized for daily driving. Drone abatement technology ensures minimal cabin resonance, making it ideal for those who want a high-performance sound without intrusive noise.
The system features a simple bolt-on installation using the factory hangers and mounting hardware. It is constructed from 100% 16-gauge 304 stainless steel, which resists corrosion for long-term durability. The exhaust gases exit through twin 3″ (76mm) polished or ceramic black laser-engraved tips, offering a sleek, high-performance aesthetic.
Key Features:
- Power Gains: +4 HP and +3 lb-ft of torque at 6600 RPM
- Drone Reduction: Abatement technology reduces low-RPM cabin resonance
- Sound Profile: Louder, sportier sound under acceleration
- Exhaust Tips: Twin 3″ (76mm) polished or ceramic black, laser-engraved tips
- Material: 100% 16-gauge 304 stainless steel construction for corrosion resistance
- Installation: Bolt-on design, using factory brackets and hangers for easy installation
- Exhaust Valve: Factory computer-controlled valve is eliminated for consistent tone
| Brand | Dinan |
|---|---|
| Dinan Point Value | 3 |
| Emission Code | 5 |
| Height | 11 |
| Labor Time (Hours) | 1.3 |
| Length | 48 |
| Max HP Gain | 4 @ 6600 RPM |
| Max Torque (lb-ft) Gain | 3 @ 6600 RPM |
| Product Type | Axle-Back Exhaust |
| Tip Finish | Polished |
| Weight | 51 |
| Width | 30 |
| UPC | 813725024585 |
| Part Number | D660-0069 |
Fitment Chart:
| Make | Model | Year |
| BMW | 330i | 2017-2018 |
| BMW | 330i xDrive | 2017-2019 |
| BMW | 430i | 2017-2020 |
| BMW | 430i Gran Coupe | 2017-2020 |
| BMW | 430i xDrive | 2017-2020 |
| BMW | 430i xDrive Gran Coupe | 2017-2020 |
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