450 exhaust?

I'm not sure if this is the right place for this topic but I'm very curious to find out which would be a better for reliability/ performance I have an 05 crf450r with a full Leo Vince x3 with carbon fiber silencer I was wondering if this pipe could cause the valves to tighten up quicker??? Should I just put my stock pipe back on

Thanks for any info

Makes zero difference.

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