Fuel economy tuning
Economy software for each engine, usually worth 5 to 15 percent better mpg on diesels driven the same way.
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Unit 31 Integra, Parkwood Industrial Estate, Bircholt Road, Maidstone ME15 9GQ
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Economy and limiter software for company vehicles, from 5 vans to large fleets. Lower fuel bills and lower CO2, planned around your warranty and de-fleet dates.
Economy software for each engine, usually worth 5 to 15 percent better mpg on diesels driven the same way.
Speed limiters fitted or adjusted, plus rev, throttle and torque limits to protect vehicles and drivers.
Performance tuning for power take-off on HGVs and plant equipment.
We profile the vehicles you run, taking account of each one's warranty period and de-fleet date, then recalibrate the ECU to suit how they're used.
Fuel savings work best alongside driver training, journey planning and tracking, and we're happy to work with whoever runs those for you.

Tell us about your fleet: how many vehicles, what they are and how they're used. We'll come back with what we'd suggest and a fixed price.
Jf automotive were very profession & kept me updated on my vans progress , pleased upgrades & performance.
Thanks for turning my campervan (vw T6) into a rocket ship! :)
They guys at JFA are very helpful and professional, they tuned my car and since I got it done it drives very smoothly and the performance is amazing, also to mention it’s a 2L TDI and I’m getting better mpg on it now aswell so really really impressed by their…
We work with fleets from 5 vehicles upwards, and with single vehicles too.
We look at each vehicle's warranty period and de-fleet date before we suggest anything, and talk you through the options.
Yes. We can fit, adjust or remove speed limiters, and set rev, throttle and torque limits.
Technicians, calibrators and the front desk, all in Maidstone. No call centre and no subcontracting - the person who books you in is the person you can ask about the job.
A short email now and then: new vehicle support, parts deals, open days. Nothing daily.