Files written for your car
Nothing generic gets loaded. The file is matched to your engine code, gearbox and whatever hardware is fitted.
On the rampOur story
Started in 2016, still on the same site
Redline Tuning began as one person working on friends' cars at weekends. Word spread, the unit got bigger and the tools got better, but the way we work has not changed. Every car gets looked at before it gets touched, and every file is written for that vehicle.
Today we look after everything from daily runabouts and high mileage diesels to modified cars and small van fleets, for customers across Essex, Suffolk, Hertfordshire. A lot of them are on their second or third vehicle with us, which is the only figure we really care about.
0Vehicles mapped
0Average customer rating
0Years on the same site
0Typical turnaround
Diagnostics benchKit and method
What we run, and why it matters to you
Good tools do not make a good tuner, but bad tools stop one. Here is what sits on the bench and what it means for the car you drop off.
- Dealer level diagnosticsManufacturer level coverage across most European and Japanese makes, so we can read what the car is really doing.
- Bench and boot toolsOBD where it is supported, bench or boot read where it is not, with the right adapters rather than a workaround.
- Road and rolling road dataLogs taken in gear under load, so the file is judged on real numbers instead of how it feels on the way back.
How we work
Four things we will not budge on
The original is kept
We save your factory file before anything changes, so the car can go back to standard whenever you want it to.
You get told the truth
If the car is not in a fit state to map, we say so. We would rather lose the booking than land you with a bill.
Back on the road the same day
Most cars are with us for a couple of hours, not a couple of days.
Online file service
Send us a file, get it back mapped
Trade customers and tuners can upload a read straight to our portal, track where it is and download the finished file when it is ready. You do not need to be anywhere near Chelmsford to use it.
- Upload, track and download in one place
- Email and SMS updates as the file moves
- Your original read is always kept on the account
Drop in or give us a ring
We are at Unit 4, Brook Industrial Estate, CM1 2AB. Call ahead if you can so we know to expect you.