Johnson
Custom tuning for the Johnson J40
Every Johnson J40 remap from Elite Remaps is developed and tested in-house by our own calibration engineers. We unlock stronger performance, sharper throttle response and improved economy while keeping everything within safe limits, and back it all with a lifetime software warranty.
The Johnson J40 has been offered in several generations and engine options over the years. Select your generation below to see the exact engines we tune and their indicative Stage 1 and Stage 2 gains.
Johnson J40 generations
Choose your generation
Why Johnson J40 owners choose Elite Remaps
Book your Johnson J40 remap
Speak to our tuning specialists for a free, no-obligation quote on your Johnson J40.
Tuning services
Explore our services
From Stage 1 to emissions solutions, explore the tuning services we offer for your Johnson J40.
Where we work
Areas we cover
Visit our Leeds workshop or use our nationwide mobile service across West Yorkshire and beyond.
Frequently asked questions
Common questions about remapping the Johnson J40.