Milltek Sport Cat-Back Performance Exhaust for BMW 3 Series F30 320i M Sport (2012-2020) - Race Non-Res, Dual Exit, Burnt Titanium GT-90 90mm Tips - Requires M340i Rear Valance/Diffuser - T304 Stainless Steel - SSXBM1075

Turn your BMW 3 Series F30 320i M Sport into a twin-exit head-turner with Milltek Sport’s UK-built catback system

Part Number: SSXBM1075

Looking for a proper exhaust upgrade for your F30 320i M Sport saloon that delivers serious soundtrack, crisp throttle response and a premium dual-outlet look? This Milltek Sport catback is the enthusiast’s choice. Crafted in Britain from high-grade 304 stainless, it swaps the single exit for a symmetrical twin setup complete with stunning blue burnt titanium GT90 90 mm tailpipe finishers for that high-end motorsport aesthetic.

This system is the non-resonated race variant for maximum presence. It is engineered with smooth, mandrel-formed tubing for efficient gas flow and long-term durability. To achieve the twin-tailpipe conversion, you will need the M340i lower valance or diffuser panel on your rear bumper for correct clearance and alignment.

Why this catback works on the road

• Non-resonated layout for a louder, more aggressive tone that lets the turbo four sing
• Twin outlet conversion delivers a balanced rear end and an OEM-plus M340i-style appearance
• GT90 90 mm burnt titanium tips provide a premium, heat-treated blue finish
• Constructed from T304 grade stainless for corrosion resistance and longevity
• Precision mandrel bends maintain consistent internal diameter for smooth flow
• Designed specifically for BMW 3 Series F30 320i M Sport models, including LCI facelift, 2012 to 2020
• Requires M340i diffuser or rear valance insert to suit the twin exit layout

Real-world results you can trust

We run Milltek on our own builds and have installed this setup for customers who wanted a sharper note and a smarter back end. Fit, finish and sound quality have been consistently impressive, with buyers praising the tone, the tip quality and the OEM-style fitment once the correct diffuser is in place.

Compatibility and notes

• BMW 3 Series F30 320i M Sport saloon 2012 to 2020, including LCI
• Twin outlet catback that pairs with the M340i rear diffuser panel
• Milltek Sport reference: SSXBM1075

Professional fitting

Want it installed properly first time? Book your fitting with MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk.

Search-friendly terms our customers use

BMW 320i F30 twin exit exhaust upgrade, BMW F30 320i M Sport catback system, 3 Series 320i non resonated exhaust, F30 dual outlet conversion, BMW 3 Series saloon exhaust system UK, GT90 titanium blue tips 90 mm, stainless catback 304 grade, BMW 320i LCI exhaust mod, M340i diffuser twin tailpipe conversion, Milltek Sport F30 320i performance system.

Add the Milltek Sport catback to your 320i and enjoy a sharper drive, a richer soundtrack and a premium twin-exit finish that looks as good as it sounds. SSXBM1075 is the go-to upgrade for style, sound and build quality.