About Us
Want to know more about us? Want to check your car is in safe hands but too scared to pick up the phone, or send us a message? Don't worry, we know what we are doing... and we won't spill coffee in your pride and joy!
Who we are
We’re a small Northern based outfit focused on one thing: BMW straight-six tuning — especially the E46 M54 with MS43. We’ve been tinkering with engines since before we could drive: lawn-mower racing, dirt bikes, go-karting… then building NA, turbo and supercharged engines, not to mention helping develop race and drift cars.

What we do
Today we tune on a Bosch-calibrated dyno, ship pre-tuned ECUs worldwide, help customers use MS4x Flasher such as MS4x_Flasher so customers can flash our software at home, and offer fully remote mapping via a secure connection to your laptop... We’re friendly, honest, and we stick to what we know — The BMW E36 & BMW E46 'nuff said!

Still flying the E36 flag?
We cut our teeth on the E36 platform (www.e36tuning.co.uk) (and still do) — but let’s be honest, many are either rusting away in a field or being held together by cable ties and optimism. Times have moved on, hair’s got greyer, and the E46 has stepped up as the new playground. Same straight-six tuning obsession, just a fresher shell.
E46’s aren’t new to us
You might know us best for our E36 turbo builds, but we’ve actually been tuning E46s for nearly two decades. From the early days of poking at the MS43 ECU, right through to today’s fully forged turbo monsters — we’ve been there.
How we help
We also work with other tuners, all around the world. Results matter more than ego here, and if our niche experience in factory ECU's suits a particular vehicle — turbo, supercharger, ITBs, big cams — we’re always happy to lend a hand. For turbo hardware we rate K64 Performance, and for MAP sensor conversions we recommend Hopwood Motorsport. If you are another tuner struggling with a particular setup, let us know!
Watch What We Do
What people say
“Mapped my turbo M54 remotely — drives like stock until you lean on it. Night and day.”
“Supercharger setup dialled in perfectly. Smooth, strong, no drama — just pace.”
“They sorted VANOS targets and fuelling on my ITB build, and somehow made the S54 ITBs work with my stock ECU. Makes proper power now.”
Explore E46 Tuning Guides
MS43 ECU calibration, NA tweaks, turbo & supercharger setups, and proven safe builds.
as a central hub for all E36 & E46 tuning.