I was wondering if johan could release an extreme rkl stack tune for the new updates but it seems that johan does not check this forum anymore?

Will there be or is the work in progress for the later model diesels, several of my freinds drive the 99 cummins and would do anything for these products?

Is there any custom tunes for the r29 update???????

Yeah you need to get gauges next and it will tell the story and they have rail pressure guages now and that would tell the real story

I want to update but i'm think about goin to the r27 to get the rkl tunes?

Is johan goin to release some new tunes for the 29 revision or has anybody heard

I had the same prob on my 03 dodge and it's because i'm draining the rail pressure. I have a fuel pressure guage and that doesn't help with the rail pressure. I have a carter pusher pump so i never get below 15 on fuel pressure even if I have it to the floor. I'm not sure about the boost fooler I ...

I have been running the ext puff tune and running my puck also will this be a bad thing over time?

that's awsome trik what else do you have done to the truck?

I thought it smoked less if anything if you ask me but the down low torque was awsome.

I'm having the same problem with the idle it idles non stop just sitting there till I take off. I got the first round idle one work but it didn't blow more smoke less if you ask me but the down low tourque was awsome just the rough idle

I had some high rpms after I loaded the new tune also. Mine would stay reved up and never come down till I actually took off and when I tapped the pedal it would climb higher? I really wasn't impressed with the smoke either I think the rkl or even extreme smokes better then it. But it did produce ...

thanks you for your help i'll call them as soon as i can.

no it's not checked I tried it both ways

The computer acts like nothing is wrong and all went well the programer is the one saying all this