Car bogs and runs rough on 2003 Ford Focus SVT

Well, the intake makes a rattleing sound I bought a new one it sounds like a WRX but still has trottle problems. It bogs down and as soon as it hits 3000RPMs it rattles still I need help its giving me a damn headache. and Chiltons manuals all exclude the SVT.

by in Wahiawa, HI on March 13, 2010
1 answer
ANSWER by on July 22, 2011
i have a 2003 ford focus svt and i have the same exact problem...just started doing it one day. still trying to figure out the problem