Hey everyone im knew to this site but, im on several other sites but i think this it the best site to ask this question. I was wondering if anyone could help me with some questions about my boost problem! When i try to boost the car i only get about maybe 5psi in first and then like 2 in all the other gears if that. Now i dont have a tune yet but i do have a fuel pump and fuel pressure regulator. Im just trying to find out why im not boosting, i also have a idle surge and i havent yet looked to what is causing that. I dont know if its a vaccum problem and thats y im not boosting or what. I think also mainly that i have stock exhaust with 4 cats!! I have a feeling that is what is really hurting my boost because its soooo restrictive?! I just orderd an x-pipe with flowmaster mufflers and no cats so im hopeing that it free's boost up! What do u guys think?