00-06 Jeep Wrangler 4.0L TJ/LJ Magnum Powers Intercooler MPX90 Supercharger Kit


In stock


Magnum Powers supercharger Kits for the Jeep Wrangler TJ/LJ 2000-2006 4.0L.

Magnum Powers Supercharger kit includes:

  • MPX90 supercharger head unit
  • All mounting hardware, pulleys
  • Complete inter-cooler system
  • Fuel injectors
  • No tuner- but UNICHIP is available for 00-04 and HP Tuners is available for 05-06. Talk to them about pre-canned tunes for stock engine applications.
  • Electric fan kit
  • Full installation instructions.
  • 2 year limited warranty from manufacturer.

Magnum Powers Jeep Wrangler TJ/LJ supercharger street kit adds over 115 foot pounds of torque and 100+ hp to the tire. The high boost version can add 250 foot pounds of torque and 250+ hp to the tire! Please note, Jeep in their advertisements call out engine hp not wheel hp, which is about 25% higher numbers then wheel horse power. Most superchargers providers call out engine horse power as well so don’t let this confuse you. Jeep claims the engine makes 190hp and we are sure it does, however a stock Jeep TJ produces only 135hp to the tire, that is a huge difference and can be accounted for by considering drive line losses, accessory drag and chassis components that reduce hp such as the exhaust system and intake components such as the intake tube and air filter.

This is a positive displacement twisted roots supercharger for boost from idle to redline. The MPX90 supercharger starts adding boost from 500 rpm. Positive displacement superchargers are known for making torque and low end power and that is what a Jeep Wrangler TJ needs!

Efficient water-to-air aftercooler system – No need to run methanol or limit boost and power as other systems do.

Magnum Powers Supercharger kit has a independent supercharger drive belt! This kit does not use the accessory belt to drive the supercharger. Instead it was designed with a separate supercharger drive belt so the crank and supercharger pulley sizes can be easily changed for boost from 5psi to 20psi (stock 9lbs). It would have been much cheaper to drive the supercharger with the accessory belt as all others do but the design spares no expense to run an independent supercharger drive system so the crank pulley could be made larger for lower end power and torque. This is a huge feature that no other supplier provides.

The Magnum Powers system is totally upgradable, if you want to start with low boost; for instance you’re on a budget, you can. Then later with simple low cost pulley changes you can increase boost as your budget can afford fuel injectors, fuel pumps, etc needed to support more power.

All fits under stock Jeep Wrangler hood, no need to install body lift kit as some do. All hardware needed for installation is included.

Manufacturer requires 21 days to build kit to your year of vehicle. Call us if you wish to participate in the half down to order and the other half on delivery!

Additional information

Weight 140 lbs
Dimensions 28 × 24 × 24 in


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