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Discussion Starter · #1 ·
I was poking around last year for small exhaust tweaks for the Grom/Thai MSX125 clone. I used to see the Arrow 52004MI header was a common item on the different parts sites. Now, after after some hard searching I found it on a site or two.

Guess my questions are:
What happened?
Does it suck?
Was it surpassed by other products?
Is it still a worth while/cost effective upgrade?

Little background, I'm not looking to do major exhaust upgrades. Just looking for an aftermarket non cat pipe I can use the stock muffler with. I rather like the bike and it being as quiet as it is and the 52004MI seemed like a cost effective alternative header.

Thanks in advance for any and all replies.
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