Scorpion SBMS082 Valved GPF/OPF Axle-Back Back Box Exhaust for BMW 1 Series M140i F20/F21 (2018+) – Active Electronic Valve Rear Silencer/Muffler Upgrade, 80mm Pipe, Daytona 100mm Tips

Scorpion SBMS082 Valved Rear Exhaust Upgrade for BMW M140i F20 F21 2018 on OPF Models

Transform the sound and character of your BMW 1 Series hot hatch with this Scorpion SBMS082 valved rear section. Designed specifically for 2018 on M140i models equipped with a petrol particulate filter, this OPF compatible back box delivers a richer tone with the option to keep things subtle or open it up when you want more drama. It is a brilliant choice for anyone searching for a premium M140i exhaust upgrade that retains factory style valve control and everyday refinement.

We have fitted this setup on customer cars and the feedback has been outstanding. The switchable flap keeps motorway cruising calm, then unleashes a deeper, sportier note when you want it. Fit, finish and overall quality are exactly what you want from a top tier performance exhaust.

Why choose this M140i rear section

• Purpose built for BMW M140i F20 and F21 2018 on with OPF/GPF
• Active valve uses your original actuator for OEM style control
• Large bore Ø 80 mm pipework for improved flow and response
• Daytona 100 mm tailpipes for a bold, factory plus appearance
• Weight saving of approximately 4.6 kg compared to the stock rear system
  (OE 15.5 kg vs Scorpion 10.9 kg)
• Direct integration with the car’s electronics via the OE motor
• Designed to mate with the standard system or Scorpion sections

Sound and drivability

The electronically controlled flap keeps things neighbour friendly with the valve shut, then delivers a more pronounced, deeper exhaust note when opened. Ideal for spirited driving without sacrificing daily usability.

Fitment and important notes

• Vehicle: BMW M140i F20 F21, 2018 on, OPF/GPF models only
• Part number: SBMS082
• Valve requires reuse of the original actuator
• The factory system requires cutting during installation
• Pipe diameter: 80 mm, 3.15 inches
• Tailpipes: Daytona 100 mm

Installation

Professional fitting recommended. MJ Modifications can supply and install at our Warwickshire workshop. To request a fitting quote, email info@mjmodifications.co.uk.

Search friendly terms

BMW M140i exhaust upgrade, F20 F21 rear exhaust, OPF compatible back box, valve controlled muffler, active flap exhaust for M140i, GPF rear section, performance rear silencer, Daytona tips, large bore 80 mm pipe, SBMS082.