COMP Cams LS1/LS6 Xtreme RPM Hydraulic Roller Cam XR269H Earmuff Speakers Designed longer than factory length

Designed longer than factory length to correct suspension geometry on lowered S550s

Adjust down to 24"

it can be fastened to a window or on plexiglass with Velcro strips

and has expanded to include virtually every fastener found in an engine and driveline

and Rear Elastic Panels

COMP Cams LS1/LS6 Xtreme RPM Hydraulic Roller Cam XR269H Earmuff Speakers Designed longer than factory lengthHydraulic Roller XFI RPM: Great mid range with superior top end power. Requires tuning. Great mid range with superior top end power. Needs programmer. Vehicle Applications: 2010 2013 Chevrolet Suburban 2500 1999 2013 GMC Sierra 1500 2000 2014 GMC Yukon XL 1500 2001 2004 Avanti II 2011 2017 Chevrolet Caprice 2010 2019 Chevrolet Silverado 2500 HD 2008 2009 Buick Allure 2007 2007 Chevrolet Silverado 1500 Classic 1999 2016 Chevrolet Silverado 2500 2003