Here at spring st performance we are lucky enough to have an all chassis dyno which is ideal for measuring your max horse power and torque ratings. We also host Dyno Days where the car with the most horse power wins a $50 gift certificate to our shop, on these special days the orginal price to do three pulls on the dyno at $95 is reduce to $75 for three pulls that day. These days are hosted every month! So stop in and discover your cars limits, and if you don't like that we can make it go even faster! We are located at 519 Seip Avenue, Nazareth PA 18064. Or call at 610-365-8847.