What is Shaners? does anyone know how much hp increase this adds, is it even worth messin with
What is Shaners? does anyone know how much hp increase this adds, is it even worth messin with
06 TrailBlazer SS LS2 4.10's
02 SC StepSide Factory Orange
Full Bolt-On 370 - Little Cam- Victor Jr Intake -Worked 5.3 Heads - 4.56's - Built 60E - Circle D 4000
07 CTS-V CAI, GM Performance Exhaust, Ported TB, Coil Overs
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