4.0L XJ Performance Spark Plug Wires 2.0 001 seconds (the fastest response

001 seconds (the fastest response time of any MAP sensor on the market)

"racer" sound

Our system is real-world and completely daily-drivable with no surprises

With our system we netted 330whp (AWD) at just 7psi

The secret weapon: The RIPP thermostat revolutionizes engine cooling with a unique design feature

4.0L XJ Performance Spark Plug Wires 2.0 001 seconds (the fastest responseTime for a tune up? Installing a supercharger or Long Tube Header? There's no time like the present to treat your TJ LJ to these high performance spark plug wires. Auto or 6spd 6 cylinder engine. Black with MOPAR Orange stripe and RIPP logo. 7. 8mm diameter. High heat resistant silicone construction. High heat resistant MOPAR Orange Boots. Compatible with the following vehicles with RIPP Coilpack conversion kit. 2000 2001 Jeep Cherokee 4. 0L XJ