117Speed is a Manchester tuning workshop built around one engine family: BMW, and the BMW-derived engines under the bonnets of the Toyota GR Supra and the Ineos Grenadier. Every car that comes through the door goes on our own four-wheel-drive dyno, gets a full health check before any work starts, and leaves with a map built from its own logs, not a generic file loaded from a shelf.
We cover the full range, from a straightforward Stage 1 remap on a daily-driven 3 Series to a fully bespoke big-turbo build on an M3 or M5. We also service a wider range of European makes. BMW tuning is what the workshop is actually built around.
Book NowFrom Golf R to X5M — highly trained technicians with deep European experience.
Every map proven on our own four-wheel-drive Bapro dyno, never file-service downloads.
Full diagnostic check before any tuning work — safety and reliability first.
From first enquiry to a car that pulls harder — here's how it goes.
Tell us your vehicle and goals. We confirm a realistic figure and a date.
A full diagnostic scan and mechanical check before any tuning begins.
A bespoke map developed and validated on our four-wheel-drive dyno.
Road-tested and handed back with a before & after dyno printout.
These are a few of the most popular. Search your car to jump straight to its configurator.
Scroll through each stage — your Bapro dyno report fills in as we work, from the first health check to the final validated power run.
Dyno Report
M140i B58 · 4WD
Calibration and dyno runs are repeated over several passes until the numbers are right.
Full vehicle scan and mechanical health check before any work begins.
Stock power and torque measured on the four-wheel-drive dyno.
Original calibration read from the ECU and safely backed up.
A bespoke map written for your specific vehicle and goals.
Repeated pulls with live data logging to validate and refine the map.
Confirmation run, road test and a before/after dyno printout.
Every ECU has to be unlocked before it can be recalibrated, and until now that’s meant sending it away and waiting. That’s no longer the case here. 117Speed unlocks ECUs in-house, using both AutoTuner and FEMTO — the two tools the trade relies on for this. It’s the same low-level access a tuning file needs either way; the difference is that the process now happens on-site rather than through a third party.
That covers effectively everything we tune. The only ECUs that still have to leave the building are the 2026 Euro 7 S58 cars and the 2026 B58 Gen 3, and even then it’s a 3–4 day turnaround rather than the open-ended wait sending an ECU away used to mean.
117Speed have been car remapping in Manchester for 10+ years. Every vehicle receives a full diagnostic health check before any tuning work, ensuring safety and reliability whether you're upgrading software for a stage 1 remap or adding hardware for a stage 2 remap.
Book NowEvery map that leaves this workshop has been through my hands. I’m Samuel, and I calibrate every car myself, on our own four-wheel-drive dyno, using that car’s own logs rather than a file that’s been written once and sold a thousand times. A base map gets you a number on a screen; what it doesn’t get you is a file built around how your specific car actually behaves. I run a full health check before I touch anything, then build the map, log it, refine it, and don’t hand the car back until the numbers and the way it drives both check out. It’s why 117Speed and SamuelTuned are the same calibration behind two different ways of getting it.
Book NowA 6000 sqft boutique facility purpose-built for tuning. At its centre is our dyno cell with a four-wheel-drive Bapro dyno, live-monitored from a bespoke tuning office, with a custom cooling fan system and twin exhaust extraction.
Book NowEverything here is calibrated by Samuel, whether your car’s on the dyno in Manchester or you’re sending logs in from anywhere else. The exception is the S58 (current M2, M3, M4, X3 M and X4 M), which needs an in-person ECU unlock and so is workshop-only.
Tell us about your car and what you're looking to do — we'll come back with what's possible.
After a poor remap elsewhere, Sam took the car from 362 to 411.7 bhp and 503 to 611 Nm — professional facilities and a team who really know their stuff…
Sam and Sabz have looked after my cars for years — honest advice, excellent workmanship and great value in a positive, customer-focused atmosphere…
A huge improvement in power, smoothness and responsiveness — could not recommend 117Speed more highly…
The things drivers ask us most before booking a remap.
If you're in search of a way to reset the Adblue system of your Peugeot 208, you've come to the right place. At 117Speed, we offer an AdBlue reset…
