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Message: <blockquote data-quote="realitygt" data-source="post: 374201" data-attributes="member: 9688">since it's my parents car, I've pretty much gotten them broken down to letting me get exhaust.  I promised them that it wouldn't be loud and sound terrible and that for real I wanted one that sounded really good and isn't massively loud. I had my friend come over with his truck to show them that mine wouldn't even be as loud as his and they thought his was a little loud but reasonable... 1 highflow cat and glasspacks...  so they're thinking about itbut the question is  to cat or not to cat. I've decided on a bassani midpipe with a magnaflow muffler (keeping stock catback piping cause my tips are clean as f**k and look good.  I need to find out which magnaflow muffler comes in the catback tho.so far the only reasons i'm thinking about getting cats is to pass inspection and quiet it down a little bit but It's hard to tell online.i'll keep my stock midpipe but idk if my cats will stay good forever lol   should i get mils? won't that tell comp a/f ratio is perfect and won't throw a code if something actually goes wrong?</blockquote>