MORE POWER.
MORE TORQUE.
MORE YOU.
Professional mobile ECU remapping, gearbox/TCU tuning and diagnostics for cars, vans, motorcycles and agricultural machinery. We come to you across Chester, Wrexham, Flintshire, Deeside and North Wales.
Mobile tuning & diagnostics
Dedicated pages give you more detail on each service and help Google understand exactly what JBJ provides.
ECU Remapping
Mobile ECU calibration for compatible cars and vans, including Stage 1 and Stage 2 options.
View ECU remapping →Stage 1 & Stage 2
Performance-focused calibration matched to the vehicle and intended setup.
View Stage 1 & 2 →DTC Diagnostics
Fault-code diagnostics and investigation before tuning or repair decisions.
View diagnostics →DPF / EGR / AdBlue
Diagnostics and lawful solutions for supported emissions-system faults.
View vehicle solutions →Agricultural Remapping
Mobile ECU tuning for compatible agricultural and plant machinery.
View agricultural tuning →Motorbike Remapping
ECU tuning for compatible motorcycles, subject to ECU and model support.
View motorbike tuning →Remapping where you are
We cover a wide local area without requiring you to travel to a workshop. Explore our local service pages for more detail.
Get a fast quote
Send your registration, make/model and service required. We’ll confirm compatibility and options.
JBJ Tuning + Solutions
Mobile ECU remapping, diagnostics and vehicle tuning across Chester, Wrexham, Flintshire and North Wales.
Remapping from £180.
All services are subject to vehicle compatibility, intended use and applicable law. Emissions-system work is offered as diagnostics/repair or other lawful solutions only.