MAP Adjuster

•Eliminates surging and bucking of stock program on late model EFI systems. Adjustable to allow for additional power gaining modification. Match your curve to air flow changes, such as Hi flow TBI, Ported Heads, Headers, Etc.... Easy Installation. Works on most speed density systems. Direct plug-in on most GM, and pre '96 EFI Chryslers. Later vehicles require splicing and hardwiring. Connector and pigtails provided. Works much like a program up grade, at a fraction of the cost.

Timing Sensor
	•Allows modification of timing, creating better throttle response and additional power. Modified OEM component; sold on exchange basis. Easily installed in your Jeep. Manual trans 4.0 L only.

Hi-Flow Mufflers
	•ROCK-IT exhaust systems incorporate a Hi-Flow muffler, designed to reduce the resistance exhaust gasses encountered with stock mufflers. The result is a better flowing exhaust system, increased horsepower and torque, as well as a throatier exhaust note!

Mandrel Bent Exhaust Tubing
	Hi-Flow exhaust is constructed of large diameter tubing to allow exhaust to pass through with less resistant. Mandrel bent tubing assures no restrictions are added at the bent of the exhaust. Aluminized metal makes our Rock-It Parts" exhaust a long lasting product
Quality Exhaust Hangers
	Brackets with hangers strategically to them, make our exhaust a zip to bolt right up, and easy to hang.