APEX DESIGNS - Jeep JL/JT Steering Boost KitTURN UP THE PRESSURE ON YOUR STOCK JEEP JL JT ELECTRIC STEERING PUMP! With aftermarket performance parts and harder off road use, the stock pressures and lack of cooling ability become an issue. We have found that the factory power steering is capable of running at a higher pressure with ease. The Apex Boost Kit allows for a retune of the factory blowoff valve so we can increase steering power by 40%. While this is good news, more power = more heat