Gibson Performance Exhaust 9004 Gibson Dual Extreme Exhaust Systems Hypertech ThermoMaster Computer Chips This results in 7–12 horsepower

This results in 7–12 horsepower and 10–15 ft-lbs of torque over the stock cast-iron Ford manifold

COMP Cams bronze distributor gears are machined from a bronze alloy that is compatible with steel billet camshafts

This listing is for part number 120512

Switching to these premium valves reduces valvetrain weight

and a switch mounting bracket

Gibson Performance Exhaust 9004 Gibson Dual Extreme Exhaust Systems Hypertech ThermoMaster Computer Chips This results in 7–12 horsepowerThis exhaust system from Atech Motorsports (9004) is engineered as a full replacement for the factory exhaust on compact trucks and sport utilities. The system replaces the restrictive factory components with larger diameter free flowing tubing and a high performance muffler that transforms both the sound and performance of the vehicle. The refined mellow sound is achieved through careful acoustic tuning of the muffler and resonator sections for a