Jetting question

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charbison

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I just got a 01 Warrior. It had an aftermarket exhaust and the previous owner said it needed a new jet for the exhaust as it sometimes cuts out and backfires. After some reading I think I’d need a smaller jet. I also read that increasing intake flow with aftermarket filter or cutting air box lid, would require a bigger jet. Might be a stupid question but if I did the air filter and air box mod would they cancel out or will I still need to re jet? Thank you
 

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YFM

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Nice warrior, welcome! Any updates?
 
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