Specialist diesel workshop · Palmerston North
More power. Less fuel. Longer life.
Manawatū Diesel Performance is a single-brand workshop on Tremaine Avenue. We remap ECUs, solve DPF and EGR problems, upgrade turbos and prove every result on our in-house Dynapack hub dyno. Every tune comes with before-and-after dyno sheets.
Book a dyno session →Services by vehicle
What we do to your diesel.
- Stage 1 ECU Remap
Power and torque increase, improved throttle response. Typically +30–40kW on a 3.2L Ranger.
From $690
- Stage 2 Remap + DPF Solution
Stage 1 plus DPF management for unrestricted exhaust flow. Includes pipe work.
From $1,450
- EGR Delete & Blanking
Removes carbon-fouling exhaust recirculation. Cooler intake temps, cleaner manifold.
From $380
- Turbo-Back Exhaust
3-inch stainless mandrel-bent system. DPF-back or turbo-back options. Fitted same day.
From $1,200
- Stage 1 ECU Remap
Power and fuel economy gains for Prado, Fortuner, Pajero Sport. Typically +25–35kW.
From $690
- Intercooler Upgrade
Larger core for sustained towing. Drop-in for 150/200 Series Prado.
From $950
- Transmission Tune
Shift point and pressure calibration for auto 4WDs. Firmer shifts, less heat.
From $490
- Catch Can Install
Pro-Vent 200 or custom setup. Stops oil mist fouling the intake tract.
From $420
- Fleet ECU Remap
Fuel-economy focused map for Hino, Isuzu, Fuso. Typically 8–15% fuel saving.
From $890
- Injector Service
Ultrasonic clean, flow test and recalibrate. Common-rail specialists.
From $120/injector
- Turbo Rebuild
Strip, inspect, replace cartridge. Genuine and aftermarket options.
From $1,100
- Dyno Baseline & Report
Three pulls, printout of power and torque curves. Fleet reporting format available.
$180
Before & after
Proven on the dyno.
Every tune is validated on our Dynapack 4000 hub dyno. These are real results from vehicles we have tuned in the last six months.
Ford Ranger 3.2 TDCi — Stage 1 Remap
Before
147
kW at wheels
390 Nm peak torque
After
184
kW at wheels
498 Nm peak torque · +37kW / +108Nm
Toyota Hilux 2.8 D-4D — Stage 2 + DPF
Before
130
kW at wheels
420 Nm peak torque
After
172
kW at wheels
530 Nm peak torque · +42kW / +110Nm
Credentials
Trained. Certified. Insured.
- Dynapack Certified OperatorHub dyno certification · Since 2014
- EFI Technology Level 3Advanced diesel tuning · Brisbane 2018
- MTA MemberMotor Trade Association NZ · Continuous
- Public Liability Insurance$2M cover · Vero NZ
- Bosch Diesel Service PartnerInjector and fuel system specialist · Since 2019
How it works
Book to collect in four steps.
- Book online or call
Tell us your vehicle, what you want and when suits. We will confirm a slot, usually within 48 hours.
- Baseline dyno pull
Three pulls on the Dynapack to record your stock power and torque. You keep the printout either way.
- Tune & validate
We flash the ECU, run the vehicle on the dyno again and adjust until the numbers and driveability are right.
- Collect & drive
You get before-and-after dyno sheets, a summary of what changed and 30-day satisfaction guarantee.
Service interval reminder
When is your next service due?
Enter your last service date and current odometer reading. We will calculate when your next diesel service is due and how urgent it is.
Check your interval
Enter your details above and press Calculate.
What our customers say
Dyno sheets do not lie.
Stage 1 on my BT-50 and it is a completely different truck. Towing the boat up the Pahīatua Track used to be a struggle — now it pulls without downshifting.
— Tane, Woodville, Mazda BT-50 3.2, June 2026We had six Hiluxes done for the farm fleet. Fuel use dropped about 12% across the board and the drivers say they are nicer to drive.
— Rangitīkei Station, fleet of 6 Hiluxes, March 2026Took my Prado in for an EGR delete. Aaron showed me the carbon build-up on the old manifold — no wonder it was gutless. Night and day difference.
— Sarah, Feilding, Toyota Prado 150, August 2026The dyno sheets speak for themselves. 37kW gain on a stock Ranger and it still drives like factory on light throttle. Exactly what I wanted.
— Mike, Palmerston North, Ford Ranger 3.2, January 2026
Visit & hours
Find the workshop.
Manawatū Diesel Performance
Unit 3, 48 Tremaine Avenue, Palmerston North 4412
06 354 0000 · power@manawatudiesel.co.nz
Saturday is by appointment only — dyno sessions and pickups. No walk-ins on Saturday.