BORLA 140793 Cat-Back™ System SILV/ SIERRA 1500 '19-'21 5.3L V8/ 4.3L V6 AT 2&4WD 4 DR EC STB (78.8") CC SB (69.3) WB 147.4" ymm_19 Pro Series 12 Point Cylinder

Pro Series 12 Point Cylinder Head Stud Kit 250-4302 by ARP®

This muffler is equipped with an internal X-Pipe to enhance performance and sound

Thermal Time Constant: < 15 sec

25" diameter Cat-Back system delivers a mellow Touring sound with no drone inside the vehicle

Finish: Natural mill (can be brushed or polished)

BORLA 140793 Cat-Back™ System SILV/ SIERRA 1500 '19-'21 5.3L V8/ 4.3L V6 AT 2&4WD 4 DR EC STB (78.8") CC SB (69.3) WB 147.4" ymm_19 Pro Series 12 Point CylinderDescription BORLA 140793 Cat Back System SILV SIERRA 1500 '19 '21 5. 3L V8 4. 3L V6 AT 2&4WD 4 DR EC STB (78. 8") CC SB (69. 3) WB 147. 4" This system is designed for factory single side exit vehicles only. For Crew Cab models with a standard bed (6' 7") and a 157" wheelbase, Adapter 60708 must be added. The 3" diameter Cat Back system features a side exit on the passenger side and delivers a mellow Touring sound level with no interior drone. It