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punching out catalatic converters on my EXPO
HELLO all i was wondering if i was to punch out 2 of the 4 convertors on my truck if it will run like crap it has 4 cats on it and i am running straight pipes right now with no muffler and its still not really loud but kinda sounds like crap so want to punch out cats and put some flow masters or...- isaiahsdaddy
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- Replies: 9
- Forum: 1st Gen Ford Expedition Engine & Performance
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