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breather filter

  1. 5.7L (345 cu in) HEMI V8 Specific Topics
    Hey guys, I have a 2004 5.7L. Ive had a CAI on the truck basically since new. I have a filter on what i believe is the Crankcase breather. However, i am getting a lot of blow by. Oil is getting everywhere. Every so often i have to replace the filter because it is clogged with oil. My question...
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  2. 5.7L V8 Specific Topics
    I put on my CAI the other day and I was disgusted when I saw how dirty my throttle body was! Does anybody know if Putting a breather filter on would effect emissions testing if so should I go with a catch can?
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