This will probobly be a quick question for everyone, but I really need to know... COBB stage 2 makes the sti run at 17.5 psi... The typhoon intake creates an extra .5-1.5 pounds... Stage 2 + typhoon = 18-19 psi... is this too much to be running on the stock sti motor with 93 octane gas? The stock psi is 14.5. 4.5-5 psi more than stock sounds like a lot... Anyone have any advice or input?