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14.2 out of our workshop dmax. This is the car our workshop Ute as a daily and also our tow rig for the workshop drag Ute. A lot of our customers have driven this for a courtesy car. Using only genuine denso +30’s, ecu shop proboost, our exhaust, flex front Mount inter cooler and valve body upgrade. 265hp on 32’s and 2050kg. After multiple diesel drag events it has yet to be beaten by another 4cyl or event 8 cylinder diesel 4x4. It was not meant to be be fast but apparently a tow car can be re

Mercedes 250D X class in for an exhaust and remap package. Modified Explorer 3” exhaust and a remap to suit - with an extra tickle for the hard cut. Our exhausts can be shipped Aus wide and we have a wide range available for almost every diesel on the market. Hit us up if you are interested in if your interested in exhausts, remaps or any diesel perfomance parts. #mercedes #250d #hardcut #carsoftiktok #4x4

Last dyno run before the engine was removed from 4jking to make way for the next part of the build. It had around 370,000klm had 52% compression in one cyclinder for a very long time. Was still raced regularly, driven tens of thousands klms, competed in drag and drive events and daily driven with that damaged engine. Laying down consistent 12.7 1/4 times and @4j Nation Still making 400hp and 1000+nm till the day it got pulled. Very basic setup which demonstrated what is possible with the right

RC Colorado in for a ecu shop proboost and genuine denso +30 injectors. Here’s what the hard cut sounds like. #hardcut #4jj1 #ecushop #ModifiedExplorer #diesel @4j Nation

NP300 Navara — Simple Mods, Serious Gains 🔥 This NP300 Navara came in with some clear goals: better economy, more power, improved reliability & longevity, without an exhaust that drones the cabin out. 👌 We fitted our 3” exhaust system and then got to work on the calibration. 📊 Before: 140hp / 330Nm 🚀 After: 210hp / 486Nm That’s a gain of +70hp and +156Nm 💥 All achieved while keeping the tune at a conservative 18:1 AFR. This is what you can expect from an NP300 with a simple exhaust + custom tune

Sometimes a small issue — and a sharp eye — can prevent a major failure 👀 This D-Max first came in months ago for a simple EGR fault. While carrying out checks, we noticed the coolant system was empty — it took around 5L to refill. The customer mentioned the head had recently been off, which raised some concerns, so we advised them to keep an eye on it. Fast forward a few months and the vehicle was back with coolant loss. After inspection, we found coolant in the oil. The head came off and faile

That NP300 came in running a mystery “load & go” tune 👀 No dyno time. Not built for the car, the mods, or the job. We hit the rollers and found it running rich ❌ Flashed it back to stock, then built a custom tune from the ground up ✅ Result? ✔️ More power ✔️ Safer AFRs ✔️ Tuned for its real job - towing excavators all day Plus a hard cut added on request 🔊 Now it drives better and uses less fuel - especially required when running 35’s. Got a diesel dual cab? Hit us up via DM or email, we’ll bui

The N70 is back 🔥 We worked on this Hilux about 12 months ago, setting it up with: • Genuine Denso +30 • Flex R77 turbo • ECU Shop Ultraboost tuned to ~220hp Fast forward a year… and it’s back for round two 👀 First job - ditch the clutch that said it could handle it (but didn’t). Out with the failed setup, in with a BRC double diaphragm clutch + fresh standard flywheel 💪 While it was here… we turned things up a notch. We removed the restrictive top mount and upgraded to a BRD front mount, then j

Not every build needs thousands in parts. This Holden Colorado RG came in with just a 3” exhaust and that’s all we needed. Our ECU remap unlocked: +52HP ⚡ +137NM ⚡ All while maintaining safe AFR, controlled boost, and daily drivability. Reliable. Efficient. Noticeably quicker. And yes… we added a hard cut limiter for that extra edge 😈 Sometimes the smartest upgrades make the biggest difference. DM us to book your tune. #dyno #diesel #dieseltuning #holdencolorado #4x4

Coming the end of phase 2 for 4jking. Pushing 400hp/1000nm on a very basic setup with a high klm pre damaged engine. Phase 3 includes some parts to hold 50psi plus 600hp+ and a heap of go fast bits. Last night of racing is 1st April at @Sydney Dragway. Come down and line us up or just see it in action. #4jj #dragracing #diesel #4jking #isuzu @TheForbyNation @4j Nation @Sydney Dragway