Milltek Sport Cat-Back (Catback) / Rear Section Performance Exhaust System for BMW M3 F80 & M4 F82 F83 (S55) | ECE Type Approved Road Legal or Race | 70mm Bore | Polished, Cerakote Black or Titanium Tips | Back Box Upgrade UK

Milltek Rear Section System for BMW F80 M3 and BMW F82 F83 M4 - ECE road legal or Race - 70 millimetre bore - Polished, Cerakote Black or Titanium tailpipes

Give your S55-powered M3 or M4 the soundtrack it deserves with this Milltek catback. It is a direct bolt-on rear system that elevates tone, style and presence while keeping everyday drivability intact. Choose the ECE road legal setup for refined cruising with a purposeful note, or the Race variant for a sharper, louder character. Tailpipe finishes include mirror polished, stealth Cerakote Black or premium Titanium to complete the rear of your BMW.

Why enthusiasts pick this system

• Perfect fit for BMW F80 M3 saloon, BMW F82 M4 coupe and BMW F83 M4 convertible with the S55 engine
• ECE type approved road version - UK road legal, civilised at light throttle, sporty when you press on
• Race version - more volume and bite for maximum theatre on spirited drives and track days
• 70 millimetre bore pipework for a deeper, richer tone and improved flow characteristics
• Tailpipe options to suit your build - Polished, Cerakote Black or Titanium
• OEM-plus look, premium finish, bolt-on installation with excellent fitment

What is included

• Adapter pipes
• Centre silencer on the ECE road legal variant
• Left-hand rear connecting pipe
• Right-hand rear connecting pipe
• Rear silencer assembly
• Tailpipe assemblies in your chosen finish - Polished, Cerakote Black or Titanium

Technical details

• Bore size - 70.00 mm
• Configuration - catback rear section for S55 BMW M3 and M4
• Approval - ECE road legal on the Road variant

Part numbers and options

• SSXBM992 - Road catback with Polished Tips
• SSXBM993 - Road catback with Cerakote Black Tips
• SSXBM994 - Road catback with Titanium Tips
• SSXBM995 - Race catback with Polished Tips
• SSXBM996 - Race catback with Cerakote Black Tips
• SSXBM997 - Race catback with Titanium Tips

Compatibility

Designed for BMW M3 F80 saloon and BMW M4 F82 coupe and F83 convertible with the S55 twin turbo engine. Ideal for anyone searching for a BMW M3 F80 catback, BMW M4 F82 F83 rear section, S55 catback system, back box replacement for M3 M4, or a UK road legal performance system with premium tip options.

How it sounds

• Road - deeper tone with excellent refinement for daily use, opens up nicely under load
• Race - heightened volume and aggression for drivers who want a more intense soundtrack

Why buy from MJ Modifications

• Specialists in BMW M performance systems for F80 F82 F83
• We have fitted this Milltek setup many times and our customers consistently praise the sound quality and fit
• Clear guidance to help you choose Road or Race to match your goals and driving style

Professional fitting

Want it installed correctly the first time? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Manufacturer and warranty

Manufactured by Milltek. Supplied with a 2 year Milltek warranty.

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