Borla 22-23 Chevrolet Silverado 1500 ZR2 & AT4X 6.2L CC SB 147.5in WB S-Type Cat-BackThis system was designed specifically for the 6. 2L Silverado 1500 ZR2 and Sierra 1500 AT4X . The 3. 5" diameter Cat Back(tm) system has dual 2. 75" turn down tail pipes and features the classic Borla(r) S Type sound level with no drone inside the vehicle. Replace the small muffler behind the primary muffler in the Borla(r) "S Type" system with Polyphonic Harmonizer 60680 to attain the "ATAK(r)" sound level (louder than "S Type"). Optional "True Dual"

3 WAY VALVE

Across documented Corvette Racing programs and internal durability testing

DSS 16 + CTS Auto 8 speed 4in ALUMINUM shaft (some heat shield clearance may be needed) GMCTSV5-A

diameter inlet/outlet Straight-Through layout

ATI Super Damper Serpentine Series Harmonic Balancer- 918628

Vibrant Performance Push-On Style Rubber Flex Hoses are designed for use with our Push-On Style Hose Ends and Fittings

Also available is a 5 inch x 4

modified and open wheel competition

2005-2006 GMC Sierra 1500 HD SLE 2001-2003

and longer service intervals

there is very little piston to valve clearance

- Requires transfer of some parts from old valley cover: oil pressure sensor