By the way, we are having a Christmas Sale. It ends 12/21/2012 Next Friday. JK Sprintex Systems are $2995. Get in touch here or facebook to find out more or find a dealer near you.

Here is what it can do for your JK. Note we specialize in low end torque. You get 90% of total torque at only 1950 RPM

 

What considerations should someone have if they've got a 3.8 with more than 60k miles on it? Does the block need to be overhauled before bolting on a high pressure system?

 

Just check your compression first. If the engine is solid there is no need to do any other work. This is a low pressure system (6 psi)designed to maximize low end torque (90% of max torque is available at 1950 RPM) without over stressing the engine. You should be fine. Our Demo jeep had 52000 on it when installed and now has 67000 with no issues.

Let me know if you have any other questions I can help with.