Superchips radically expands its Jeep performance tuning lineup with the release of the Trail Jammer EXT system including a Superchips Flashpaq, throttle body and a cold-air intake kit.  Superchips offers the new Trail Jammer system for the Jeep Wrangler (TJ) and the Jeep Cherokee (XJ) vehicles that have the fuel-injected 4.0L straight-six engine.

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