BMW 135i 235i 335i 435i 535i & M2 F87 (Non comp) Remap

2009- 2018 | 2016 - 2018

Stock Figures:

300 – 310bhp / 255 – 368whp / 500nm.


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BMW’s Second generation of turbo charged 3.0 litre inline six engines… The N55, This engine can be found in a few variations from early E series cars with the vacuum controlled turbo, the F series *35i models which can come in either pwg (vacuum) or ewg (electronic wastegate) and also the OG M2 which is benefitted from forged crank, uprated oil pump, piston rings and additional cooling hence being capable of making more power than other N55 stage 1 or 2.


Tuning methods available:

  • Stage 1

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    Only ECU Flash Required

    360 – 380bhp / 305 – 320whp/ 600nm.


    Engine Mapping 

    Gearbox XHP Software  (Not Required)


    Stage 1 remap requires no physical changes to be made to the car this is software only and sees a huge gain in performance from standard power.

  • Stage 2

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    Exhaust modifications required

    380 – 400bhp / 320 – 340whp 650nm.


    Engine Mapping 

    Gearbox XHP Software  (Recommended)

    Decat Downpipes


    Stage 2 remap requires exhaust modifications, whether sports cat or decat. At this power gearbox mapping is recommended also. 

  • Stage 3

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    Available upon Request (Requires Built Engine)


    Stage 3 packages consist of upgraded HPFP (high pressure fuel pump) usually in the form of a Dorsch or a later B58tu pump and a hybrid turbo such as a pure turbo. With the addition of methanol or ethanol we are seeing north of 600 bhp comfortably on these cars.

  • Gearbox Mapping

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    For N55 engines we opt for the world leading XHP gearbox software which compliments our custom engine mapping perfectly. Improved 0-60mph, better 1/4 mile, 2nd gear launching, raised torque limiters, massively improved shift times and optimised shift rpm all add together to make a package that transforms the daily drivability and power delivery of the legendary N55.

Step by step how to get your remap:

Buy your remap online

Buy online selecting the tuning stage and methods you require.

Our team will be in touch

Within 24 working hours our team will be in touch via email to arrange your remap.

The remap

We'll carry out your chosen remap either remotely or in-house based on your selection.

Our guarantee

All of our remaps come with a guarantee, so your 100% satisfaction is a given for each project.

1. Buy your remap now online:

For track use a baffled sump is recommended for the *35i to prevent oil starvation, common modifications include better spark plugs (ngk 97506), stronger charge pipes & more efficient intercoolers. The different turbos used between EWG and PWG affects power when tuning usually by around 20hp with the PWG models making more. EWG is usually found from 2014 onwards and can easily be checked by looking down the left side of engine with bonnet open.



When tuning two limitations are usually found, firstly the spark plugs if they are worn and secondly the HPFP. When looking to get over 400 bhp its common to fit a dorsch hpfp or hpfp from the b58 (although the install is not as clean as the dorsch) with either of these pumps fitted ethanol blends are also capable and if an uprated turbo is installed, boost can be increased without fuel pressure crashes.


 When mapping we are able to recalibrate sports dials, disable cold start, modify burbles on sport mode and remove speed limiter

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