As I see guys, if we start with $10,000 price tag we have to factor in that the renntech airbox alone for the m112/m113 is almost $2000
lets say you asked renntech to forgo the airbox, that brings the price down to $8000 (which i think is fair for parts, labor, installation, and any warranty they place on the motor/drive-train after the modifications)

Combined with a second hand needswings, intake, and eurocharge tune (during their special). That would be a little N/A beast