Dinan dnnD660-0091-BLK Valved Axle-Back Exhaust System with Black Tips

Utilizing factory cut points and mounting mechanics the Dinan exhaust system is a straightforward install with precision fitment just like you would expect straight from the manufacturer. Mounting and proper fitment is where the similarities to the factory exhaust end, however. Fabricated from brushed 100% T304 stainless steel, TIG welded and free of hydroformed pipes the upgraded system is a substantial improvement from its predecessor - both in terms of material/construction as well as in overall looks. When viewed from the rear the difference becomes unmistakable if it was not already apparent. Going from the plebeian stock dual slash cut 90mm (3.5") tips to the massive Dinan straight cut 102mm (4") ones leaves no doubt that something above and beyond is present. This is solidified by the Dinan logo laser engraved on the tips and the deep growl of the exhaust that is indisputably different than anything one would expect to hear from a base 4-cylinder turbo platform. Stainless Steel - Black Tips - G20/G22 430i fitment is confirmed only for the coupe (G22) variant. The convertible (G23) and gran coupe (G26) have not been tested. They have additional underside bracing which may interfere with exhaust installation.

• Dual 4" (102mm) double-walled, black ceramic coated clamp-on tips with laser engraved Dinan logo
• Larger diameter piping for increased flow (85mm to dual 60mm vs. 85mm to dual 83mm)
• Drone abatement technologies used to reduce cabin resonance
• Factory-like fitment with included mounting hardware
• Maximum gains of +4 HP and +3 ft-lb of torque
• 100% 304 Stainless Steel construction
• Enjoyably louder, sportier sound
• Retains factory valve control

Upgrade the sound, appearance, and flow of your compatible BMW with the Dinan dnnD660-0091-BLK valved axle-back exhaust system. Designed around factory cut points and mounting locations, this system provides factory-like fitment with included mounting hardware. Its brushed 100% T304 stainless steel construction, TIG-welded fabrication, and absence of hydroformed pipes provide a substantial improvement over the original system.

The system features dual 4-inch (102 mm) double-walled, black ceramic-coated clamp-on tips with laser-engraved Dinan logos. Larger-diameter piping supports increased flow, while integrated drone abatement technologies help reduce cabin resonance. The exhaust produces an enjoyably louder, sportier sound and retains factory valve control, with maximum gains of up to 4 horsepower and 3 ft-lb of torque.

Fitment includes select 2019–2022 BMW 330i and 2021 BMW 430i applications listed below. The 430i fitment is confirmed only for the G22 coupe; the G23 convertible and G26 Gran Coupe have not been tested, and their additional underside bracing may interfere with installation.

Key Features & Performance Benefits

• Black exhaust tips: Dual 4-inch double-walled tips provide a larger, more distinctive appearance.
• Increased exhaust flow: Larger-diameter piping supports improved flow through the system.
• Drone abatement: Technologies help reduce unwanted cabin resonance.
• Sportier performance: Delivers a louder exhaust note with maximum gains of 4 horsepower and 3 ft-lb of torque.

Specifications & Technical Data

• Brand: Dinan
• Part number: dnnD660-0091-BLK
• Product type: Valved axle-back exhaust system
• Material: 100% T304 stainless steel
• Tip size: Dual 4 inches (102 mm)
• Tip finish: Black ceramic coating
• Pipe configuration: 85 mm inlet to dual 60 mm outlets
• Valve control: Retains factory valve control

What's Included

The exhaust system and mounting hardware are included.

Fitment

Fits 2019–2022 BMW 330i and 330i xDrive applications listed in the product data, plus 2021 BMW 430i and 430i xDrive. The 430i application is confirmed for the G22 coupe only.

Fitments:
2019 BMW 330i Base
2019 BMW 330i xDrive Base
2020 BMW 330i Base
2020 BMW 330i xDrive Base
2021 BMW 330i Base
2021 BMW 330i xDrive Base
2021 BMW 430i Base
2021 BMW 430i xDrive Base
2022 BMW 330i Base
2022 BMW 330i xDrive Base
2022 BMW 430i Base
2022 BMW 430i xDrive Base
2023 BMW 330i Base
2023 BMW 330i xDrive Base
2023 BMW 430i Base
2023 BMW 430i xDrive Base
2024 BMW 330i Base
2024 BMW 330i xDrive Base
2024 BMW 430i Base
2024 BMW 430i xDrive Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Units Per Sku: 1
Regular Stock: t