ECU remapping that actually suits your car.
Custom-tuned files for performance, economy or both - tailored to your engine, fuel and how you drive.
A good remap isn't about chasing the biggest dyno number - it's about a smoother, more usable car that does what you want it to. We work with established tuners on custom files, never generic 'stage 1' downloads, and we won't remap a car we're not confident in. If your engine has a known weak point at the power you're after, we'll tell you before you spend a penny.
Performance benefits
- More mid-range torque (the bit you actually feel)
- Sharper throttle response, less lag from turbos
- Smoother power delivery - especially in DSG/auto gearboxes
- Improved overtake punch in 2nd-4th gear
Economy benefits
An economy-focused map is honest engineering: more torque lower down means less throttle for the same speed, fewer downshifts on motorways. Most diesel drivers see 5-15% real-world MPG improvement when they drive sensibly.
Our remap process
- Pre-map full health check - engine, gearbox, clutch, DPF status
- Original file read and stored (we can always return to stock)
- Custom file generated for your exact engine/fuel/usage
- Map written, road tested, fine-tuned if needed
- Aftercare and tweaks included for the first month
Brands we remap
BMW (N47, N57, B47, N20, S55 etc.), Audi/VW Group TDI and TFSI engines, Mercedes OM642/OM651, Land Rover SDV6/SDV8, and most other modern marques with EDC17/MED17 ECUs.
More from the workshop
Dealer-Level Diagnostics
Full dealer-grade fault finding for BMW, Audi, Mercedes, Land Rover & more.
Learn more
DPF Cleaning
Specialist DPF regeneration and cleaning for VW, Audi, BMW and Mercedes.
Learn more
Auto Electrical
ELV repairs, short circuit diagnostics and full vehicle electronics.
Learn moreGot a fault no one else can fix? Bring it to Maj.
Phone, WhatsApp or book online. We will diagnose, quote honestly, and only fix what needs fixing.