Custom ECU remapping, AdBlue, DPF & EGR solutions, and onsite tuning for tractors and farm machinery — measured and proven on the dyno.
Hitech Diesel is a local, independent diesel specialist serving Canterbury, the West Coast and beyond. We don't load generic, off-the-shelf files — every remap is written for your exact vehicle, its condition, and how you actually use it.
From daily-driver utes to hard-working tractors and forage harvesters, our work is verified on the dynamometer so you get the gains you paid for — more torque, cleaner running, and the reliability to back it up.
Whatever runs on diesel, we sort it — the everyday ute in the driveway through to the gear working out in the paddock. Every tune is written from scratch for your machine and proven before it leaves us.
Custom diesel tunes written specifically for your engine. More torque and sharper throttle response in a single remap.
A troublesome DPF brings constant warning lights, limp-home faults and downtime. We provide a clean, reliable solution that gets the engine running the way it should.
A problematic EGR set up means rough running, carbon build-up and ongoing reliability headaches. Our solution leaves your engine running smoother & more efficient.
AdBlue and SCR systems are expensive and frustrating when they play up. We deliver a reliable solution so faults and warnings can't leave you stranded.
We come to you. Onsite tractor, harvester, and ag-machinery tuning across Canterbury and the West Coast — no need to transport your gear off the farm.
Harvesters, tractors, and heavy ag equipment lose money every hour they're parked. We bring the gear to you — or take it into the workshop — tune it properly, then prove the result on the dyno before it goes back to work.
Our team are local trade-qualified technicians and have worked across heavy diesel, autonomy, and agri R&D internationally — now remapping is what we do.
That depth of experience means you get a specialist, not a workshop that offers remapping on the side.
Christchurch and Canterbury based, with reach across the South Island. Fast turnaround with nothing shipped overseas.
No generic off-the-shelf maps. Every file is written fresh for your vehicle's actual condition and use.
Onsite tuning for tractors and machinery. No downtime hauling equipment across the region.
Results measured on the dynamometer — you see the real gains, not marketing claims.
We tell you what your vehicle actually needs, not what makes us the most money. Honest advice, every time.
Our software is modified by local, qualified, experienced personnel. We know how your gear earns its keep.
If it runs on diesel, we can most likely tune it.