Stay Tuned Dmax 4JJ1 Remapped and Exhausted 

Well done DAmian 👏👏👏🦋🚘

Awesome work. Who knew just a tune could make such a difference. 👍

I look forward to powercruise where I hope you will be steering this.

Good stuff,. We have a 2011 Isuzu NPR, with the 4jj1. Do you or somebody you know have an ECU they would run the engine without exhaust problems constantly? Thanks

I'd like to do this on my rodeo 08 model,is this better than buying those performance plug and play modules?

What about the drivetrain and the gearbox , can they handle the extra power?

Is this the 3.1 turbo diesel engine ?

What size was the original exhaust?

Actually...not a waste of time. Maybe it is on the dyno but i've done pretty much exactly what you just did. I did 0-100 street acceleration on stock engine, tuned engine, and lastly with the 3 inch turbo back. The tuned result was obviously night and day difference to the stock result, but the exhaust also picked up another whole second to 100kph. Stock - 15.4 sec 0-100 Tuned -11.2 With 3 inch exhaust - 10.2. Mines 4x4 with auto. Bloody brilliant towing the tradie trailer :)