you might as well install it without ur stock cat, why go thru all the trouble of welding ur stock cat and then a month later unweld and weld the new one. Just save up for the hfc and install the non foulers, for now so u wont throw a code.
stock cat with Megan Header
Hey guys I'll be installing my headers next week but I can't buy a HFC right now, will I throw any codes or have a big performance hit if I use my stock cat for a month or so?
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