COMP Cams Stage 2 Thumpr Camshaft LS 4.8L/5.3L/6.0L Trucks 1443A21 Reduces Shift Throw by Over

Reduces Shift Throw by Over 35%

Programmable Outputs

Castrol SRF brake fluid has a wet boiling point of 518°F (270°C) which exceeds DOT 3 and 4 standards

1999-2001 Workhorse P42

By flipping blades

COMP Cams Stage 2 Thumpr Camshaft LS 4.8L/5.3L/6.0L Trucks 1443A21 Reduces Shift Throw by OverLarger version of No Springs Required (NSR) Thumpr design for 5. 3 and 6. 0L truck applications. Ideal for more highly modified truck w headers, converter, gear, etc. Vehicle Applications: 2007 2007 Chevrolet Silverado 3500 Classic 2000 2014 GMC Yukon XL 1500 2003 2006 Chevrolet SSR 2004 2005 Workhorse FasTrack FT1601 2003 2006 Chevrolet Sonora 2007 2007 Chevrolet Silverado 2500 HD Classic 2005 2009 Saab 9 7x 2003 2006 Isuzu Ascender 2007 2007 GMC