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Discussion Starter #1
I just installed my FS 4-1 and my MBRP cat bak...sounds good, idle is as smooth as before and everything else seems to be perfect, except that I have a little bit of a gas smell sometimes...is that normal since there is no cat...it does not smell a lot tho...just wondering if it's normal...
 

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Get used to it, that's normal. Kinda makes me feel like I'm in an old classic car with that smell. Or on a motorcycle. No cat will smell different. Gassy if you will.
 

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With the Cat removed you're not burning off excess emissions, and that's why you're getting that smell.
 

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A Focus without a cat can pass most (if not all) emission standards. My money says he's smelling new tubing being 'broken in'.
 

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Discussion Starter #6
A Focus without a cat can pass most (if not all) emission standards. My money says he's smelling new tubing being 'broken in'.
No it's really a gas smell...
 
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