Dinan Free Flow Axle-Back Exhaust System with Black Tips for BMW G30 540i 2017-2023
The Dinan Free Flow Axle-Back Exhaust for the G30 540i is designed to enhance exhaust flow by reducing back pressure, resulting in increased power and a sporty, aggressive sound. Utilizing the same muffler as its B58 siblings, this system improves both tone and performance, adding intoxicating burbles and pops under hard acceleration. While the exterior sound is bold, the cabin remains comfortable thanks to the Helmholtz chamber, which minimizes low-RPM drone. Crafted from 100% 16-gauge 304 stainless steel for durability, the exhaust also features a striking new tip design with massive quadrilateral black ceramic-coated tips for a high-performance aesthetic that transforms the rear of the 540i. Easy bolt-on installation ensures perfect fitment using the factory hangers.
Key Features:
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Power Gains: +6 HP and +5 lb-ft @ 6600 RPM
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Drone Reduction: Helmholtz chamber design reduces low-RPM resonance for cabin comfort
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Sound: Louder, sportier, and more aggressive with added burbles and pops
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Exhaust Tips: Twin quadrilateral black ceramic-coated tips with laser-engraved Dinan logos
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Material: 100% 16-gauge 304 stainless steel for long-lasting durability
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Valve Removal: Eliminates the factory computer-controlled exhaust valve for consistent flow and sound
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Installation: Uses factory brackets and hangers for easy, factory-like fitment
| Brand |
Dinan |
| Dinan Point Value |
3 |
| Emission Code |
5 |
| Height |
12 |
| Labor Time (Hours) |
1.3 |
| Length |
55 |
| Max HP Gain |
6 @ 6600 RPM |
| Max Torque (lb-ft) Gain |
5 @ 6600 RPM |
| Product Type |
Axle-Back Exhaust |
| Sale Category |
Exhaust |
| Weight |
45 |
| Width |
30 |
| UPC |
813725025148 |
| Part Number |
D660-0078-BLK |
Fitment Chart:
| Make |
Model |
Year |
BMW
|
G30 540i
|
2017-2023
|
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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