Fits 2012–2015 M135i Pre-LCI (F20/F21)

M135i PRE-LCI (F20 & F21) ENGINE & PERFORMANCE

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M135i Pre-LCI (F20/F21) Engine Performance102 products

102 products
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Pure Turbos BMW N55 Stage 2 Turbo (M135i/M235i/335i/435i/M2) - R44 Performance Pure Turbos BMW N55 Stage 2 Turbo (M135i/M235i/335i/435i/M2) - R44 Performance
Pure TurbosPure Turbos BMW N55 Stage 2 Turbo (M135i/M235i/335i/435i/M2)
From £2,726.59GBP £2,963.68GBP
Dorch Engineering BMW N55 Lift Kit For High Pressure Fuel Pump Upgrade - R44 Performance
Dorch EngineeringDorch Engineering BMW N55 Lift Kit For High Pressure Fuel Pump Upgrade
From £921.65GBP

M135i Pre-LCI (F20/F21) Engine Performance at a glance

Vehicle
2012–2015 BMW M135i Pre-LCI (F20/F21)
Powertrain
3.0-litre N55 single twin-scroll turbo straight-six
Main parts
turbo upgrades and fuel system upgrades
Brands
Dorch Engineering, Pure Turbos
Fitting & delivery
Fitting at R44 HQ, Wembley · UK & worldwide delivery
Parts listed
102 parts for the M135i Pre-LCI (F20/F21)

BMW M135i Pre-LCI (F20/F21) engine tuning & performance parts

R44 Performance stocks 102 engine performance parts for the 2012–2015 BMW M135i Pre-LCI (F20/F21). Parts include turbo upgrades and fuel system upgrades, from brands including Dorch Engineering, Pure Turbos.

Most builds follow the same order: an ECU tune first, then intake and cooling upgrades such as intakes, charge pipes and intercoolers to keep temperatures in check, then fuelling, turbo and internal upgrades for bigger power targets. Each step supports the next, so it pays to plan your build as a whole.

Results depend on the combination of parts and the tune that supports them, so speak to our team before you buy. We can recommend a proven setup for your M135i Pre-LCI (F20/F21), fit it at R44 HQ in Wembley, and deliver across the UK and worldwide.

Written by the R44 Performance team, Wembley, London

M135i Pre-LCI (F20/F21) Engine Performance FAQs

What engine performance parts are available for the M135i Pre-LCI (F20/F21)?

R44 Performance lists 102 engine performance parts for the BMW M135i Pre-LCI (F20/F21), including turbo upgrades and fuel system upgrades. Brands include Dorch Engineering, Pure Turbos, and every part is listed for the M135i Pre-LCI (F20/F21) – check each product page for body style and model-year fitment.

What are the best first engine upgrades for the M135i Pre-LCI (F20/F21)?

For most turbocharged cars, the best first upgrades are an ECU tune and an intake, followed by cooling upgrades such as a charge pipe and intercooler. Each supports the next, so decide on your goals first – our team can suggest a setup based on how you use your car.

Do I need a tune after fitting performance parts?

Bolt-on parts like intakes can usually be fitted on their own, but bigger changes – such as downpipes, larger intercoolers, fuel system or turbo upgrades – normally need a matching ECU tune to run safely and make full use of the hardware. Check each product page or ask our team.

Will performance upgrades affect my warranty or insurance?

Modifications can affect manufacturer warranty cover and must be declared to your insurer. If your M135i Pre-LCI (F20/F21) is still under warranty, check with the manufacturer or dealer first, and speak to your insurer before fitting.

Can R44 Performance fit engine performance parts to my M135i Pre-LCI (F20/F21)?

Yes. Our technicians fit engine performance parts at R44 HQ in Wembley, London – contact our team for a quote and availability. We also deliver across the UK and worldwide if you'd rather use your own fitter.