Remus Cat-Back & Rear Silencer for BMW 1 Series M135i F20 F21 (F2x) – OPF/GPF Compatible Sports Exhaust System, Stainless Performance Back Box/Backbox, Muffler with Black Chrome Tailpipes

Performance stainless cat-back and rear silencer upgrade for BMW 1 Series M135i F20 F21 (F2x, OPF GPF models)

Unlock a sharper soundtrack and freer-flowing performance with this premium Austrian-built system. Prices already include a 7% saving, so you get exceptional value on a top-tier sports exhaust straight away. Perfect for enthusiasts seeking a deeper, more engaging tone and a quality finish to match the M135i’s character.

Why owners choose this system:

• Rich, motorsport-inspired sound with refined volume for daily use
• High-grade stainless construction with a shot-blasted finish for durability
• Optimised gas flow for reduced back pressure and improved responsiveness
• Lightweight layout compared to stock for a subtle performance edge
• Precision fit to the F20 F21 chassis with OE-style alignment and presentation
• Handcrafted in Austria for exceptional build quality

We’ve installed this system on customer cars and feedback has been fantastic. Owners love the deeper tone, the quality of the black chrome tailpipes and the confident, refined soundtrack on throttle. It is a superb upgrade for anyone searching for a BMW M135i sports exhaust, cat back system, rear box, backbox, performance muffler, or OPF GPF compatible exhaust for the F2x platform.

Compatibility

• Only suitable for vehicles equipped with OPF GPF
• Pipe diameter: 84 mm
• Installation note: the original system requires cutting during fitment

Available configurations and part numbers

• Racing rear silencer with black chrome tips
  Part numbers: 088914 0500 + 087011 1683CB
• Rear silencer with black chrome tips
  Part numbers: 088014 0500 + 087011 1683CB
• Racing cat-back system with black chrome tips
  Part numbers: 088014 0300 + 088914 0500 + 087011 1683CB
• Cat-back system with black chrome tips
  Part numbers: 088014 0300 + 088014 0500 + 087011 1683CB

Fitting and support

Want it installed correctly first time? Book professional fitment with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

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