Flowmaster American Thunder Exhaust System - Cat-Back - 3" Diameter - Dual rear Exit - Dual 4" Black Ceramic Tips - Stainless - 5.3 L Dee Zee The included Type K thermocouple

The included Type K thermocouple assures maximum accuracy and minimum response time

Billet Specialties V-Trac pulley systems work with any type of cylinder head or manifold configuration

high turns ratio windings around an M36 high silicone magnetic steel C-core for higher energy and voltage outputs

smaller plenum chambers and unique runner design for better 60 foot times and max power from 3500 to 7500 rpm

Flowmaster American Thunder Exhaust System - Cat-Back - 3" Diameter - Dual rear Exit - Dual 4" Black Ceramic Tips - Stainless - 5.3 L Dee Zee The included Type K thermocoupleDoes Not fit 2019 LD classic body style or trucks with factory single exhaust system. Max Dyno Gains of 15 hp and 19 lb. ft. of Torque Moderate Interior with Aggressive Exterior Tone Uses the Factory Hanger Locations Large Volume Super 40 Muffler Stainless Steel Construction Lifetime Limited Warranty Easy Installation Product Description: Exhaust System American Thunder Cat Back 3 in Diameter Dual rear Exit Dual 4 in Black Ceramic Tips Stainless