dont need them yet you can run like this 7psi perfect with stock ecu and feuling 1 thing you do need is fmic i am even running stock exhaust atm for nct/mot 1s you have it there then its very easy to make it go faster ha ha
i did this becouse i went tru sooo many shitty ct9 smoke machines i have a smokeless vf now with no play ( really minimal ) etc etc will never go back to ct9 and i am emissions legal to