RX-KEVIN said:RX-KEVO here. open vent a hks ssq and you, your passengers and anyone in a 1/4 mile radious will s*** their pants when you shift. obviously there is 0 performance gain, but redline shifts boost up quicker cause the valve is faster and stronger. you can get the car to stall but this glitch can be easily avoided with experienced. Plus other street racers know you mean business when they hear it