BMW M3 E46 S54 3.2 Axle-Back Rear Section Performance Exhaust Back Box/Backbox - Quad 3 Inch Tips Muffler Rear Silencer Upgrade, Bolt-On to OEM Centre Section

E46 M3 S54 3.2 axle-back upgrade with quad exits

Transform your BMW M3 E46 with a rear section upgrade that elevates tone, presence and finish. This direct-fit axle-back system connects to the factory centre section and delivers that unmistakable S54 soundtrack with a sharper, sportier note and a premium quad-tip look. It is a popular choice with our workshop and customers alike for its quality, fitment and addictive sound.

Key details

• Fitment: BMW M3 E46 3.2 S54
• Configuration: axle-back rear section that mates to the OEM centre section
• Pipe diameter: 2.5 inches / 63.5 mm
• Tailpipe style: YTP18 Quad 3 inch tips 76.19 mm
• All required nuts and bolts supplied for installation

Why enthusiasts choose this upgrade

• Enhances the S54 note with a deeper, more purposeful tone while keeping cabin comfort in check
• Quad exit finish fills the E46 rear valance beautifully for a factory plus appearance
• Straightforward bolt-on fit to the stock centre section
• Trusted brand quality that our team has fitted and driven, with excellent feedback from M3 owners

What is included

• Rear section assembly to replace the factory back box
• Quad 3 inch YTP18 tailpipes 76.19 mm
• Fitting hardware fixings supplied

Not included dealer-only items

The following components are not supplied and are dealer parts. Please check the condition of your existing items to confirm if they can be re-used or replaced as needed.

• Component 18 metal slip-on flange BMW part number B18.11.1.719.417
• Component 17 graphite ring gasket BMW part number B18.10.1.405.737
• Component 15 metal ring gasket usually re-usable

Installation and support

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

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Media

Example of BMW M3 E46 sports rear section BM22 and BM23.

Example of BMW M3 E46 sports rear section BM22 and BM23.

Example of BMW M3 E46 sports rear section BM22 and BM23 fitted alongside an aftermarket de-cat second section.