the speed has a weighted crank for a smoother power delivery.
also the ports are different. the speed revs to the moon with a os2060 pipe.
But this combo is 440 motor and 110 for the pipe. thats 550 for the combo
I would look for a stock vspec and an os 2050 or JP3 pipe
270 stock vspec
100 OS 2050 pipe
70 Jammin JP3 pipe
So the motor with os 2050 is 380.00
The diff between the
jp3 has a bigger midrange hit and has a higher peak HP
os 2050 is a smoother power band with almost the same peak HP and better fuel mileage.