It's totally a feel thing when you are driving your vehicle. The delay is gone in throttle response and your vehicle moves pretty much immediately when pressing the throttle pedal. For an under geared vehicle, like mine, it makes tip and feathering the clutch much less cumbersome and restores drivability. In some ways I would compare it to the idle control on the Superchips, where I liked driving my JK a lot better when the idle was set to around 1100 rpm instead of the normal 800 rpm.

Is it worth it? I don't know, for some yes and others no. For me I wouldn't give it up and it was the only upgrade I have done on the JK that my wife immediately noted a difference.

 

I have had my sprint booster for about a month. All I can say is this is night and day. I don't think the 3.8 is as much of a dog as I originally did. Improved throttle response makes a huge difference. I added a airaid cold air intake this sounds much better with the booster. I will be researching the flash package, have not heard much about this.

 

I am definitely not bashing anyone here, I am asking open and honest questions. Please don't read my questions as sarcastic or asshole-ish.

My first question is what happens to mpgs when this device is used? I guess if you're worried about acceleration you're not worried about mpgs? I mean it is a jeep and they get low mpgs compared to other vehicles, but 17-22 is a big difference than 10-8.

I'm a little confused paying to improve throttle response. Are you comparing it to how your previous car drives? Is this your first jeep perhaps? It's a jeep, not a z06 'vette. I read earlier about someone "taking cars off the line", that just doesn't
make sense in a jeep to me. I don't think jeeps were meant to go fast, they were meant for torque and traction in heavy duty conditions, plus they would have been more aerodynamic. If you're worried about acceleration and you are adding throttle enhancers, superchips, and intakes why not lower your jeep as well to reduce drag and airflow under the vehicle? Might want to go with some smaller tires as well, you will have an easier time stomping it off the line if you don't have to spin 32"+ tires.

I do feel the jeep could use a little more acceleration than what it has currently, but in a way I enjoy the slower accel because it's keepig me out of tickets. I have a lead foot and have had many tickets in my day. The way I see it is people will have to stare at my jeep longer if I'm going slower lol. I really think all these performance gains you are getting is actually hurting your engine, transmission and axel life severely. I had a twin turbo eclipse way back in the day that I floored it at every green light and raced everyone under the sun. You know what I got? A cluster F of engine, transmission and suspension trouble that nobody would ask for.

I know it's all personal preference, but I honestly could not being myself to spend money on this kind of stuff when there's so many accessories to enhance your jeeps offroad abilities. This is what seperates us from the rest of the crowd, not quarter mile time. Regardless have fun with your accessories, I'm going to suscribe so I can see how it turns out in the long run. Keep us posted!

 

x2

You need to keep these things in mind. The harder you beat your stuff, the more grenades you get. I dont care what the manufacturer of a product says, if i get 50 horse by just plugging a computer in and pressing a button, i'm skeptical. You are running something out of specs. Pumping more fuel makes the pump work harder (Those are fun to swap by the way), running more voltage to the throttle servo runs it hotter, and last less time. In my oppinion, jeep built the 3.8l to function well, for a decent amount of time. I know its a dog, but its a dog for a reason, and that reason is that it's a 3.8l v6, in a very capable and heavy off-road rig (Which isnt much of a dog if you leave it stock). No amount of bolt on/plug in mods will change the fact that it is still a 3.8l v6. Sure you can get more power, but youre sacrificing from somewhere. Get a snorkel and exhaust, put the rest into building the drivetrain, and enjoy a jeep that has less power, but spends more time wheeling, and less time getting over-run with grenaded parts.
Remember broken parts don't always break within cell range.

 

I've read on here that people that have replaced from the headers back typically have a noticeable deal of improvement in their jeep. I think this is a safer bet than adding chips or sprinters because everything else is still running the heavily researched factory settings. It's something I am considering doing before I splurge for a lift (as well as c gussets and inner sleeves). My snorkel comes in Friday , I ordered it with the prefilter because I'm more concerned about functional improvements over hp gains but I will let you know how that goes.

I don't have anything against superchips or other mods, I'm just skeptical of the claims and I definitely question the long term effects. I don't want a $100-$300 part ruining my $28k Jeep.

 

I couldnt agree more, I've been running 5.13 gears 35's/37's since 2007 in my JK, Had I known the sprint booster worked this good, I would have installed it back then.

Putting it to the floor does not have the same effect as the spring booster, I also have the superchips flashpaq which helped even more.

 

i had a sprint booster on my 08 ..now have 2011.. tried to put it on the 2011 but their is something above the pedal that gets in the way of plugging it in on the 2011.. says it works on the 2011 .. maybe they changed the design ? anyone have one on the 2011 ?

 

is it the radio amp? I had to remove the amp (reinstall) to get to the pedal.

 

no i can get to the pedal and unplug it and plug it into the sprint booster .. but then its to big to plug back into the pedal.. something bumps out above the pedal.. i guess 2011 design change.. ?

 

Sorry, I'm not sure