Milltek Sport Secondary Cat-Back Exhaust System for BMW 1 Series 135i (E82 Coupe & E88 Cabriolet) N55 3.0 Turbo, 2010-On – UK-Made 304 Stainless Steel Performance Upgrade

Milltek Sport Secondary Cat-Back Exhaust System for BMW 1 Series 135i (E82 Coupe & E88 Cabriolet) N55 3.0 Turbo, 2010-On – UK-Made 304 Stainless Steel Performance Upgrade

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Milltek Secondary Cat-back Exhaust for BMW 135i E82 and E88 N55 2010 onwards

Upgrade your BMW 135i with the Milltek Secondary Cat-back exhaust system. Perfect for the 1 Series 135i N55 3.0 turbo, this UK-made performance exhaust delivers a sharper, sportier sound and optimised gas flow without unwanted drone. If you are searching for a BMW 135i exhaust, Milltek 135i cat-back, E82 exhaust upgrade, E88 Cabriolet exhaust, N55 performance exhaust or 1 Series 135i stainless steel exhaust, this is the premium choice.

Why choose Milltek for your BMW 135i N55

  • Hand built in the UK by time-served craftsmen for the BMW 135i E82 Coupe and E88 Cabriolet N55 2010 onwards
  • Aerospace grade type 304 non-magnetic stainless steel throughout for exceptional corrosion resistance and longevity
  • Mandrel-bent pipework with carefully increased bore size over stock for optimised gas flow and performance without sacrificing mid-range torque
  • Comprehensive acoustic development for a crisp, sporty exhaust note with no NVH, drone or unpleasant cabin resonance
  • Precision-engineered silencers and hardware for consistent fit and finish

Key benefits

  • Transform the sound of your BMW 135i while keeping it refined on the motorway
  • Quality materials and build for long-term reliability on daily drivers and tuned cars alike
  • Designed specifically for the N55 3.0 turbo engine platform
  • Ideal foundation for future performance modifications and tuning

Compatibility

  • BMW 135i 1 Series Coupe E82 N55 2010 onwards
  • BMW 135i 1 Series Cabriolet E88 N55 2010 onwards

Nforcd feedback and customer experience

We have used this Milltek 135i cat-back on our own builds and customer cars, and the feedback has been consistently excellent. Customers love the deeper, more engaging tone and the premium fit and finish. If you want a BMW 135i exhaust upgrade that sounds right, looks right and lasts, Milltek delivers.

Fitting and support

Professional installation recommended. For fitting at Nforcd in Warwickshire, request a quote at Sales@nforcd.com.

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Choose Milltek for your BMW 135i N55 and enjoy a high quality, drone-free performance exhaust engineered and hand finished in the UK.