Sandy · Bedfordshire
Tuned for more power.
4WD rolling road, ECU remapping and custom exhaust fabrication. We also do MOTs, servicing and repairs, so your daily driver and your weekend car can go to the same garage.
Performance
Tuning & dyno
Every tune starts and ends with real numbers. We measure your car before we change anything, map it properly and show you the result on paper.
In-house
4WD Rolling Road
All-wheel-drive dyno for power runs, before-and-after figures, live mapping and fault finding under load.
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We come to you
Mobile 2WD Dyno
Our portable rolling road comes to car meets, club days and shows. Good for a power-run shoot-out.
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ECU Remapping
Custom maps for more power, sharper throttle response and better drivability, checked on the dyno.
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Exhaust Fabrication
Bespoke systems built and welded in-house, from back boxes and tips to complete systems.
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Why 4Tune
Proven on the rollers
Anyone can sell you a remap file. We set your car up on our own 4WD rolling road, check it's healthy, record a baseline, then tune it and prove the gains with a before-and-after power run.
- In-house 4WD rolling road, so we test front-, rear- and all-wheel-drive cars
- Health check and baseline run before anything is changed
- Exhausts fabricated in-house to suit your car and your tune
- A full working garage, so we can fix anything the health check finds
Garage
Everyday servicing, done properly
The same team that tunes cars also looks after everyday ones: MOTs, servicing, diagnostics and repairs for all makes and models.
MOT Testing
On-site MOT testing station. Book your MOT and get any work it needs done in the same place.
Servicing
Interim and full services to manufacturer schedules, with quality parts and oils.
Diagnostics
Warning lights, faults and drivability problems found with proper diagnostic equipment.
Repairs
Brakes, clutches, suspension, timing belts and general mechanical repairs.
3D Wheel Alignment
Accurate 3D alignment for even tyre wear and sharp, predictable handling.
Tyres
Tyres supplied and fitted, with balancing to go with your alignment.
Mobile dyno hire
We bring the rolling road to you
Running a car meet, club day or show? Our mobile 2WD dyno makes a great centrepiece. Book a power-run day and see who really makes the most power.
From the workshop
Recent builds
See more dyno runs and builds on our socials.
Visit us
Find the workshop
Opening hours
| Monday | 8:30am – 5:30pm |
|---|---|
| Tuesday | 8:30am – 5:30pm |
| Wednesday | 8:30am – 5:30pm |
| Thursday | 8:30am – 5:30pm |
| Friday | 8:30am – 5:30pm |
| Saturday | Closed |
| Sunday | Closed |
Dyno sessions and mobile dyno events by appointment.
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AddressUnits A2–A5, Sandy Business Park
15–21 Gosforth Close, Sandy, Bedfordshire SG19 1RB -
Phone01767 691191