Gonna do something stupid with the autocross car

So my dad is really hell bent on getting as much power out of our 318ti autocross car so we’re going to “fogg” our airbox which just means adding another hole for air to enter. On our cars this has actually been shown to add about 3-4HP which is nice. He’s also been talking our mechanic who swears by Pulstar spark… » 5/22/15 11:34pm Yesterday 11:34pm