The number one kit on the market for the 07-2011 Jeep JK period! No other brand matches RIPP in customer satisfaction, power and reliability. Designed with the "shade tree" mechanic in mind, our 3.8L Kit installs with basic hand tools. Everything else needed is included in the box. From new plugs to pre programed tuner. Initial testing has found that a stock 3.8l JK only produces 133 Wheel Horse Power (WHP) on stock tires and gears. Most of our clients have 35-37" tires installed, WHP then drops to 108-123whp. With the addition of a RIPP Supercharger and running through stock exhaust manifolds, cats and exhaust, the 3.8l produces 240-/+ Rear Wheel HP (WHP) on stock wheels/tires and gears at 8psi. More over an impressive 230+whp and 260+lb/ft. of torque on commonly used 35" wheels and tires. Testing on our in house Dyno Dynamics Dyno, we found the power curve to be very linear, with the power found in all usable RPM ranges, especially from low RPM. When used in 4WD-low the power is instantly available and completely manageable. Daily Driving a RIPP powered Wrangler is like driving a V8 powered vehicle without the poor gas mileage and added weight. Acceleration is never a problem and getting up to highway speed in no longer a task. With over 3500 kits sold world wide, the list of users and manufacturers that rely on RIPP is impressive to say the least. RIPP Superchargers are the most powerful 50 state legal supercharger kit on the market for the 2007-2011 JK. Additionally, clients around the globe have reported a gas mileage increases of nearly 2 miles per gallon in the city and over 4 highway WHEN DRIVEN respectfully even on larger tires and axles.
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