Remus Valve-Controlled Sports System for BMW M135i F20 F21 LCI

Give your BMW 1 Series M135i the soundtrack and road presence it deserves with this Remus valve-controlled, resonated catback upgrade. Built from high grade stainless steel for the facelift F20 and F21 with the N55 turbocharged straight-six, model years 2012 to 2015, it delivers a deeper, richer tone, improved flow and a premium motorsport look while remaining EC type approved for UK road use.

Finished with twin 84 mm Street Race outlets in black chrome with carbon fibre sleeves, this setup looks as purposeful as it sounds. The electronically controlled valves integrate with the factory BMW system for a switchable soundtrack that is calm on the commute and assertive when you press on. It is a direct-fit, bolt-on performance exhaust upgrade tailored specifically to the M135i platform.

Why enthusiasts choose this Remus system

• Valve-controlled sports sound with a refined, resonated centre section for minimal cabin drone
• Uses the original BMW valve control for seamless, in-car operation
• Stainless steel construction for durability and a premium finish
• Noticeably more character from the N55 while retaining day-to-day civility
• EC approved for street use
• Twin 84 mm straight-cut tailpipes, black chrome with carbon fibre sleeves for an aggressive OEM-plus look
• Vehicle-specific fitment for the M135i rear apron using factory mounting points

Tailpipe specification

2 x 84 mm Street Race finish, straight-cut, black chrome with carbon fibre inserts.

Vehicle compatibility

• BMW 1 Series M135i F20 and F21 LCI
• N55B30 engine, 240 kW
• 2012, 2013, 2014, 2015

Real-world results

We have fitted and run this system on our own cars as well as customer vehicles. Feedback is consistently positive for fitment, finish, tone and everyday usability. Expect a deeper, sportier note that opens up under load with the valves, along with a high quality look thanks to the black chrome and carbon fibre tailpipes.

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Fitting and support

Professional installation available at MJ Modifications in Warwickshire. For a fitting quote or product support, email info@mjmodifications.co.uk.

Summary

If you want a premium, EC approved, stainless steel catback with valve integration for your BMW M135i F20 F21, this Remus system delivers an authentic performance tone, superb build quality and stand-out twin 84 mm black chrome carbon fibre tailpipes. A proven, direct-fit upgrade for the N55-powered M135i.