Add to Cart The item has been added Gibson 18-21 Ford Mustang GT 5.0L Cat-Back Dual Exhaust -Stainless Gibson Performance introduces a Dual Exhaust system for the Ford Mustang 5.0 steed an extra shot of American-Made power producing 32hp gain and 34 ft-lbs torque increase. Combined with an... $2,405.98 Add to Cart The item has been added Compare