For just a mild street cruiser hypers will be fine. I have a set of Speed Pro hypers in my one 360 that I raced and it has 7 seasons on it. Over 1500 passes. Shifted at 6000, trapped at 6300. Freshened it up a few times and all is well. My dad and wife both had a set of KB hypers pistons that one piston decided it'd rather be in a million pistons...so personally I'd stay away from KB hypers if it were me.