Comp Cams Camshaft, LS1 283T HR-109 MT THUMPR Suspension Mounts Chrome housing and clear lens

Chrome housing and clear lens combo delivers OEM-style appearance with modern LED performance

EQUAL LENGTH Primary Runners Result In A More Controlled & Refined Exhaust Note & Yield Better Horsepower Gains Past 4

and pressing out the old hub

so fitment depends on your specific bumper and hood clearance

Yes—it's engineered to mount at OE attachment points

Comp Cams Camshaft, LS1 283T HR-109 MT THUMPR Suspension Mounts Chrome housing and clear lensMutha Thumpr, 283THR7 High Performance Street Strip, Rough Idle MUTHA' THUMPR High performance street strip, needs 9: 1 CR, 2500+ stall, intake, gears, and headers, rough idle Specifications RPM Range: 2300 to 6600 Valve Timing: 0. 006 Lobe Separation: 109 Intake Centerline: 103 Vehicle Fitments: Year Make Model Submodel 2001 2004 Avanti II Base 2008 Buick LaCrosse CXS 2008 2009 Buick LaCrosse Super, CX, CXL 2004 2007 Buick Rainier CXL 2004 2005 Buick