Is it really needed, i had one in my old intake but not the v2 , it must have a stock one. My car runs in the 188-195* all the time , if i drive the car for a little and get it to 186 it will pull hard, but if i run it two or three times in a row on the street That it starts to lag and slow up. Do you think that it is from the temp the motor is running and that i need a 160 stat. Runs good if its about 60* and under other then that it does not like the heat at all.