So i got a 07 5.9 with quad and diablo in it. It ran find for a long time then it started acting weird. if i just have the diablo on rkl it runs fine. rp is 23500 max and boost is normal, but when i put the quad on with or without the diablo it acts crazy. rp is 26616 and boost will go to 22 and stay there for a few seconds and then it goes to 35-38. i have ran the stack, smoke and mpg and it does it on all them. the other day a code came up and it was the one for high rp. what should i do? thxs guys

 

Did you get the timing feature taken out of the Quad box before you tried stacking it with your Predator? Too much timing is very bad.......

 

yea i run pressure only with the quad box most of the time.