Mosselman BMW N55 PWG Stage 1 Upgrade Turbocharger Kit – MSL42-54
The Mosselman MSL42-54 Stage 1 Upgrade Turbocharger Kit for BMW N55 PWG engines delivers a serious performance upgrade with OEM reliability. Built from brand new genuine BMW turbochargers and enhanced with Mosselman’s own high-flow, low-lag internals, this N55 turbo upgrade increases airflow and reduces backpressure for stronger mid-range and top-end power, faster spool, and razor-sharp throttle response. Ideal for daily-driven performance and track use, this is the proven plug-and-play BMW N55 PWG turbocharger upgrade for M135i, 335i, 435i, 535i and X5 35i owners who want more than just a remap.
Perfect for pre 07/2013 BMW N55 PWG cars, the Mosselman Stage 1 turbo works brilliantly with ECU remaps, iTronic Engine Controllers and supporting performance modifications. Manufactured in-house in the Netherlands to Poka Yoke and ISO standards, each unit is VSR balanced, quality controlled and supplied with a limited 1-year warranty. Expect dependable power, fast spool, and true OEM-like fitment.
Why choose this N55 PWG turbo upgrade
- Genuine BMW turbo base with Mosselman-engineered internals for high flow and low lag
- Direct bolt-on, plug-and-play installation for BMW N55 PWG engines
- Fast spool-up, wide powerband, improved response and reduced backpressure
- Manufactured in-house by Mosselman Turbo Systems in the Netherlands
- VSR balanced with rigorous QC, Poka Yoke and ISO-standard processes
- Works seamlessly with ECU remaps, iTronic and other performance parts
- Limited 1-year warranty
Nforcd recommendation: this is one of our go-to BMW N55 turbocharger upgrades. We have supplied and fitted these kits for enthusiasts across the UK and customer feedback has been consistently excellent for drivability, reliability and power potential. If you are searching for a BMW M135i turbo upgrade, BMW 335i turbo upgrade, BMW 535i turbo upgrade, BMW X5 35i turbo upgrade or an N55 PWG hybrid turbo solution, this Mosselman MSL Stage 1 is a top choice.
Compatibility – BMW N55 PWG models manufactured before 07/2013
Engine: N55 with PWG only. If you are unsure whether your car is PWG, please contact us.
1 Series
- E82 Coupe 03/2012–2013 – 135i
- E88 Convertible 03/2012–2013 – 135i
- F20 2011–07/2013 – M135i, M135ix
- F21 2011–07/2013 – M135i, M135ix
3 Series
- E90 E91 E92 E93 2011–2013 – 335i
- F30 2011–2016 – 335i
- F31 2011–2016 – 335i
4 Series
- F32 2013–07/2013 – 435i, 435ix
5 Series
- F07 F10 F11 2009–07/2013 – 535i, 535ix, 535i ActiveHybrid
6 Series
- F06 F12 F13 2009–07/2013 – 640i, 640ix
X Series
- E70 X5 LCI 2009–2013 – X5 35ix
- F15 X5 2012–07/2013 – X5 35i, X5 35ix
Installation and fitting
This is a plug-and-play, direct replacement turbo for N55 PWG engines and any competent mechanic can install it. For professional fitting, tuning guidance and support, we recommend booking installation with Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Quality and warranty
Each Mosselman upgraded turbocharger is built from a new genuine BMW turbocharger. Units are engineered and manufactured in-house, VSR balanced and verified to strict Poka Yoke and ISO standards to ensure long-term reliability. Supplied with a limited 1-year warranty.
Core charge
A core charge option is available and can be refunded after inspection and approval by Mosselman.
Part number
TUN55.4252.PWG
Compatibility check before dispatch
We verify fitment prior to shipping. Provide your UK registration or last 7 of your VIN at checkout to ensure this BMW N55 PWG turbo upgrade is correct for your vehicle.
Popular search terms
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