Need some advice please. I've got the Dr. Performance box now but took it off. Can't stand how when you get on it and let off quick the engine keeps fueling. If you were doing a quick street race you literally have to stand on the brake while the engine wants to keep fueling. Take the box off and it runs fine. I'm using a BullyDog and had them stacked. Love the mileage increase and throttle response by having more pressure, but don't like how the Dr. box runs.

 

I have never had that problem with mine..

 

I thought mine was doing the same, put a rail pressure gauge on it and the pressure would come down like stock but truck was still pulling Dr P on or off other mods will cause the problem too

 

I've made runs with and without the predator box on and there is no doubt it causes random surging because my Bullydog has never had that effect by itself.

 

mp-8. It's not as aggressive, but it's completely adjustable.

 

I just installed the Quad X2 with the pressure only software downloaded to it today. I'm very impressed.

 

my truck does the same thing. after you get on it some it wants to keep fueling just like you said.

 

I've had the same problem with my truck before I started running a Predator box turns out it was the bullydog took it out now I only run smarty and it's never happened again.

 

What he said!!!

 

Another vote for the mp-8!

 

Anyone seeing better fuel mileage with pressure box's such as the MP8 or stacked with the Bullydog?

 

Power Puck with bf out performed mp-8 on my truck by 16 hp

 

With my juice/ramifier stack I gained about 1.5 mpg over the juice alone. I was pleased as punch

 

Ive tried both the MP8 and X2 and so far I dont know which I like best. They both do a great job. Im running the X2 now just because it has a RP gauge!

 

I'd rather give up 16hp to have control of the amount of pressure being added. JMO though.