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  1. Focus ST Performance
    Is the roush Cai box compatible with ford racing snorkel? Does anyone have this set-up?
  2. Focus ST Performance
    I've been trying to do my research on exhausts as well as down pipes for my st. I'm learning as I go and enjoy learning new things regarding mechanical systems. My question is what downpipe would be a good fit or for that matter are they all compatible with a roush cat back exhaust? Or does...
  3. Focus ST Performance
    I kept my ST stock last year and did a few autocross events and a couple of track days. One of the highlights of 2013 was passing my father-in-law on the front straight at Summit Point in my stock Focus ST with him in his 580 HP Camaro ZL1. I know that starting with the modifications just bumped...
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