Gibson Performance Exhaust 9004 Gibson Dual Extreme Exhaust Systems Hypertech ThermoMaster Computer Chips Switching to these premium valves

Switching to these premium valves reduces valvetrain weight

This cylinder head features quality construction using materials appropriate for its intended application

The billet cover eliminates ballooning under high pressure

and a switch mounting bracket

This listing is for part number 120512

Gibson Performance Exhaust 9004 Gibson Dual Extreme Exhaust Systems Hypertech ThermoMaster Computer Chips Switching to these premium valvesThis 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