How you doing lol ?? The way the stroker kit works is it lets the cylinder move further up and down. This is achieved by using a different crankshaft. Not only is that in itself expensive you also have to add up labor. A stroker kit may add hp and torque but it also lowers the limit at which an engine can safely rev. It is not good to have the piston travel further up and down and also at a faster pace. In essence you are making the piston move a further distance at the same rate of speed of your stock set up. This causes significant wear on your pistons, and also will decrease the engines ability to perform at high rpms. Not worth it in my opinion especailly when you have the RENNTECH price tag to add on as well.