Supersprint Performance Rear Silencer Back Box Muffler Axle-Back Exhaust for BMW F30 F31 F34 3 Series & F32 F33 F36 4 Series N57/N57N 3.0d - 330d 430d 435d xDrive Diesel - DPF-Back Rear Section Upgrade - Part 989406

Supersprint Rear Silencer for BMW F Series N57 Diesel — Part No. 989406

Unlock a richer, more purposeful tone from your straight six diesel with this premium rear section from Supersprint. Designed to replace the factory back box on selected F Series models, it delivers a deeper soundtrack on throttle while staying refined on the motorway. Expect a quality finish, precise fit and an OEM-plus look that complements the car perfectly.

We have fitted this system for many customers and the feedback has been consistently positive for sound, appearance and fitment. If you want a subtle but unmistakably sportier note without unwanted drone, this is the rear silencer to choose.

Why choose this upgrade

• Deeper, sportier tone with everyday comfort retained
• Direct replacement rear section for the models listed
• High quality construction for long term reliability
• Pairs seamlessly with the factory mid section or a Supersprint centre pipe for an even fuller sound
• Clean OEM-plus aesthetics that suit the F Series body styles

Compatibility

N57N 3.0 diesel applications only. Suitable for the following F Series vehicles:

• BMW 3 Series
  • F30 Saloon 330d including xDrive where applicable
  • F31 Touring 330d including xDrive where applicable
  • F34 Gran Turismo 330d including xDrive where applicable
• BMW 4 Series
  • F32 Coupe 430d
  • F33 Convertible 430d
  • F36 Gran Coupe 430d and 435d xDrive

Not suitable for petrol variants or 2.0 diesel models.

Part number

Supersprint 989406

Upgrade path

For a more pronounced diesel soundtrack, combine this rear section with the matching Supersprint centre pipe for the same platforms listed above. The pairing creates a balanced, deeper note while keeping refinement on longer journeys.

Installation

Professional fitting available at MJ Modifications in Warwickshire. For a fitting quote and availability, email info@mjmodifications.co.uk.

Manufacturer and warranty

Manufacturer: Supersprint

Warranty: Supersprint 3 year warranty

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