Header leak maybe???
did you use all the same gaskets? if you did, it might be time to replace your gaskets bro..if not that..check to see if you have any cracks in the welds or flanges Trending Topics
also it could be right after the y pipe if you dont have a gasket . when i did a header swap for a guy he was missing a gasket and told me to go ahead and do it anyway . well sure enough it started spitting and sputtering when letting off the gas . after he went for a ride he ordered a gasket and as soon as i put it on for him sound like it was stock . on the same note check all your connections where stuff meets . it is always a good idea to retighten bolts after doing something .
hope this helps man and merry xmas to all
snake
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