Exhaust Upgrade Theory

chiefmeat68 · 09-28-2022, 01:57 PM

It seems everybody claims a significant boost in power by upgrading their exhaust. I believe these claims. I understand a higher flow less restrictive exhaust will give a performance boost.

What is not obvious is why many of the aftermarket exhaust setups I see suggested would be any less restrictive than the stock exhaust?

Like this one I am considering... suggested by moto taco... for the Hawk 250 as an example...
https://www.amazon.com/dp/B07GYSLJMD...roduct_details

It apears to be the same tube diameter and still has a cat... how does it make such a difference?

Is it actually bigger ID diameter? Smother on the inside? Less bends? Is the cat less restrictive somehow? Is the baffle/muffler the key?

Would it be better to keep the stock exhaust and remove the cat or would an aftermarket one with a cat still be better? Any suggestions for an aftermarket that comes without a cat?

Maybe it exists... but if not it seems someone could make some money selling just a straight pipe "header" that mates with the stock mufflers!!

09-28-2022, 01:57 PM	#1
chiefmeat68 Join Date: Mar 2022 Location: Eastern WA Posts: 20	Exhaust Upgrade Theory It seems everybody claims a significant boost in power by upgrading their exhaust. I believe these claims. I understand a higher flow less restrictive exhaust will give a performance boost. What is not obvious is why many of the aftermarket exhaust setups I see suggested would be any less restrictive than the stock exhaust? Like this one I am considering... suggested by moto taco... for the Hawk 250 as an example... https://www.amazon.com/dp/B07GYSLJMD...roduct_details It apears to be the same tube diameter and still has a cat... how does it make such a difference? Is it actually bigger ID diameter? Smother on the inside? Less bends? Is the cat less restrictive somehow? Is the baffle/muffler the key? Would it be better to keep the stock exhaust and remove the cat or would an aftermarket one with a cat still be better? Any suggestions for an aftermarket that comes without a cat? Maybe it exists... but if not it seems someone could make some money selling just a straight pipe "header" that mates with the stock mufflers!!
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