I will never let anyone I care about use Mishimoto products after seeing their thermostat fail on a good friends motor, causing it to blow. He sold the car and retired from the modding scene. I also had their thermostat fail, but I was more fortunate and didn't loose the motor.
Mishimoto is on the left w/ 4k miles on it, Stock unit is on right w/ 6k miles on it........... as you can see the O-ring seal is already gone on the mishimoto while the stock unit looks fine. QUALITY matters.
Forums are here to inform, throw some truth at the readers!