i supercharged mine at 167000 and the only issue ive had is breaking a 3/4 shifter fork (i believe) and i know of many people who have done that on non boosted cars, and the issue wasnt related to boost. superchargers put much less strain on the motor since the boost is constant and lower than a turbo kit, but dont be fooled, they make about the same as a msp at 8 psi when the sc is at 4 psi. and you can turn it off to save gas and strain on the motor.