BMW E46 320i Axle-Back Exhaust Rear Silencer/Muffler Back Box/Backbox Replacement | Cobra Sport TP46 Twin 3" Tips | 63.5mm (2.5") Rear Section | Fits 3 Series Saloon Coupe Touring 1998-2005

BMW E46 320i Rear Silencer Back Box Upgrade – Cobra Sport

Unlock a richer, sportier soundtrack and a sharper rear-end look for your BMW 3 Series E46 320i with this high quality rear silencer and tailpipe assembly. This axle-back style upgrade delivers a purposeful tone and refined finish that enthusiasts love, while maintaining everyday usability. We’ve fitted these on customer cars at MJ Modifications and feedback has been consistently excellent for sound, fit and finish.

Key features

• Designed for BMW 320i E46 platform – Saloon, Coupé and Estate Touring models
• Axle-back configuration – installs from the centre section rearwards, replacing the factory rear section
• 63.5 mm pipework diameter 2.5 inch for improved flow and a deeper note
• Tailpipe style: TP46 – twin 3 inch 76.19 mm round tips for a clean, aggressive look
• Supplied complete with all required fittings and gaskets for installation
• Fully guaranteed for peace of mind

Important fit note: this system replaces rear boxes with a single inlet pipe only. It does not fit twin inlet rear box setups.

Why choose this upgrade

Perfect for drivers seeking a performance-focused rear muffler backbox replacement that elevates sound and aesthetics without unnecessary complexity. The carefully tuned design enhances exhaust tone on the BMW 320i E46 while complementing the car’s classic lines with twin round tips. Built to a high standard by Cobra Sport, it’s a proven choice among UK enthusiasts.

Popular search terms

BMW 320i E46 exhaust back box, E46 320i rear silencer, axle-back exhaust for BMW 3 Series E46, performance muffler upgrade, twin exit 3 inch tips, 63.5 mm bore replacement rear section, centre section back system, Cobra Sport E46 320i backbox, BMW 3 Series 320i touring saloon coupe exhaust, TP46 twin tailpipes, BMW 320i sports exhaust rear section.

Professional fitting available

For installation, we recommend booking with MJ Modifications in Warwickshire. Get a fitting quote by emailing info@mjmodifications.co.uk.