Milltek Sport Cat Back Exhaust System for BMW 1 Series E87 118d/120d M Sport 5-Door Hatchback (2004-) - T304 Stainless Performance Diesel Upgrade

Premium stainless rear-section exhaust for BMW E87 118d and 120d M Sport 5-door

Give your diesel 1 Series the soundtrack and response it deserves with a UK-crafted stainless system that looks factory-fresh yet sounds purposeful. This Milltek rear system is engineered for the E87 118d and 120d M Sport 5-door from 2004 onwards, delivering a deeper tone, smoother flow and confidence-inspiring build quality for daily driving and weekend blasts.

Why enthusiasts choose this system

• T304 stainless steel for long-term corrosion resistance and a clean finish
• Mandrel-bent tubing for consistent diameter and improved gas velocity
• Sportier exhaust note with controlled volume and minimal cabin boom
• Designed and hand-finished in Britain by experienced fabricators
• Cat-back layout keeps the factory catalyst in place for hassle-free ownership
• Direct bolt-on fit to the E87 M Sport 5-door platform using standard mounting points

Compatible models

• BMW 1 Series E87 5-door
• BMW 118d M Sport 2004 onwards
• BMW 120d M Sport 2004 onwards

If you are unsure about suitability for your specific chassis and engine variant, contact us and we will confirm fitment.

Real-world results you can feel

We have fitted this system on multiple customer cars and the feedback is consistently positive. Owners report a more engaging diesel soundtrack without harshness, crisper response thanks to freer-flowing pipework, and the reassurance of premium materials that stand up to UK roads and weather.

Fitting and support

For professional installation, speak to MJ Modifications in Warwickshire. We can supply and fit, and we are happy to advise on compatibility and lead times. Request a fitting quote at info@mjmodifications.co.uk.

Search terms to help you find the right upgrade

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