Durban · South Africa
Precision ECU calibration and performance hardware for diesel bakkies, 4x4s and performance cars. Every figure on this site came off a dyno — not a brochure.
Vehicle lookup
Pick your car. If we've already built one, you'll see the real dyno figures. If not, you'll get a straight answer about what the platform responds to.
Choose your vehicle above to see what we can do with it.
Can't find your car? We tune far more than we've listed — send us the details and we'll confirm.
Proven builds
Five cars, five sets of real numbers. Click any build for the full breakdown.
What we do
Four services, one standard. Nothing leaves here on a generic file.
A custom ECU calibration on completely standard hardware. Fuelling, boost, ignition and throttle mapping rewritten around your engine, your fuel and how you actually drive.
Software and hardware mapped as one system. Downpipes, turbo-back exhausts and intake work calibrated together — which is the only way either of them actually pays off.
Supply and fitment of hardware we've actually tested — including DeGraaf stainless turbo-back exhaust systems, downpipes and supporting components.
ECU reading and writing over OBD or bench, fault-driven diagnostics, and file work for workshops that need a calibration they can trust.
Why Autowerks
There is a difference between buying a generic map off a server and having someone build a calibration around your engine, your hardware and your fuel. One is a download. The other is a job.
The process
Vehicle, goals, hardware, fuel quality and current health. We read the ECU and check the car is fit to tune before anything else happens.
Torque, boost, ignition, fuelling and throttle mapping rewritten around your engine — with every factory protection left in place.
Road and dyno validation with datalog-driven refinement. We measure what we changed, then prove it. You get the numbers.
Aftercare, revisions and a hardware roadmap for whatever you plan next. Your original file stays archived with us.
The work
Real cars, real numbers, published the same way we post them to @autowerks_sa.
Straight answers
If a tuner won't answer these plainly, that tells you something.
Not when it's done properly. We calibrate inside the mechanical and thermal limits of your specific engine and leave every factory protection strategy intact. The figures we chase are the ones the hardware can live with long term — which is why our cars are still on the road years later. A tune that ignores those limits isn't a tune, it's a bet.
A modified calibration can affect a manufacturer warranty claim, and any tuner who tells you otherwise is not being straight with you. We'll talk through your situation honestly before you commit, and we can return the ECU to its original file whenever you need.
A Stage 1 calibration is usually a same-day job. Stage 2 builds involving hardware fitment and dyno validation typically need the car for longer — we'll tell you exactly what to expect when we quote, not after we've got your keys.
Yes. Every figure published here came from a car we tuned and measured. Where a gain is quoted at the wheels, we say so. Where it's a peak output, we say that too. Your car's result will depend on its condition, fuel quality and hardware — which is exactly why we measure rather than promise.
For petrol builds we calibrate around the fuel you'll realistically use and tell you the minimum octane to stick to. Diesel calibrations are less fuel-sensitive, but consistent quality diesel and a healthy filter make a measurable difference.
Regularly. Plenty of customers travel in for a build, and we also provide a file service for workshops elsewhere in the country. Message us and we'll work out the practical option.
Next step
Send us your vehicle details and we'll come back with a realistic target, a price and the next open slot. No obligation, no sales script.
