Stay Tuned Dmax 4JJ1 Remapped and Exhausted

Should you get a custom dyno tune or remap? Should you get a 3 inch exhaust? You are about to find out!
We finally get back into a 4JJ1!! Lets see what is good and what is not. What will become the ultimate 4JJ1 dyno guide!

[@jamesoverend7753]

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

[@staytuned9176]

True that!

[@greenblue980]

Lmao that's the real ability of the car

[@wherearewe4x442]

What do you mean the tune is litteraly everything

[@giuseppinapalumbo7892]

Well done DAmian 👏👏👏🦋🚘

[@rbarmy3841]

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

[@staytuned9176]

You wish!

[@elwoodroadsmusic9639]

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 :)

[@staytuned9176]

Hey mate, each to their own but we have tested a very large number of these and it's the same result everytime.

[@elwoodroadsmusic9639]

@@staytuned9176 I wonder if it comes down to the muffler then . Mines straight piped with a small resonator. Interesting

[@staytuned9176]

@@elwoodroadsmusic9639 I don't think so. You can unbolt the exhaust with the same result.

[@elwoodroadsmusic9639]

@@staytuned9176 well, something somehow made the difference haha. With back to back road tests it showed a definite difference. Who knows. Maybe my stock exhaust was badly clogged.

[@onedodger1]

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

[@staytuned9176]

Yeah at this level, they are perfectly fine

[@randypfeifle6519]

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

[@staytuned9176]

In short yes. Call us during the week 0428816873

[@damntuff62]

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

[@staytuned9176]

Yes, very much so. The plug and play solutions are terrible.

[@damntuff62]

​@@staytuned9176where are you located?

[@staytuned9176]

@@damntuff62 in Fyshwick, Canberra

[@hughie7545]

Is this the 3.1 turbo diesel engine ?

[@staytuned9176]

They are a 3 litre turbo diesel - 4jj1

[@thecrunchyone376]

What size was the original exhaust?

[@staytuned9176]

They vary from 2.25 to 2.75 inch

[@thecrunchyone376]

@@staytuned9176 What was the size in this car?

[@staytuned9176]

As above