slip on/ remap?

I have a 2012 CRF250R and have been looking for a slip on muffler allowing a spark arrestor, if I buy one will I need to remap the computer?

Probably not.

Id def remap the bike. You can remap a bike and get good performance gains bone stock, and your removing that crappy muffler that is so restrictive. Id do it. You wont have to but itll run better.

Let me clarify my earlier post. A good remap is like having a good complete exhaust system. The slip on isn't gonna make much difference. I'd spend the money on a remap instead and you'll save a ton of cash. Their are good maps, and bad ones. I know from experience, I've had both.

Jeff

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