i puy a hks evc and and an hks super suction kit and after three days of short trip a few block to see if the install made a difference. But not have a strutter around 5k rpm. it feels like i hit a wall in the car. and does anybody know how to work the evc boost controller the controller didn't come with any setting papers. So when i drove the car i left it off. And i want to install my hks suoer sequencial blow off valve? let me know thank you