Can ziggy beat K&N's price online?

and I know that he's a loved member of the forums here, but that exhaust (https://www.rtmracing.com/xcart/product.php?productid=17797&cat=1554&page=1)
looks to be the same as the $120 one's I'm finding on eBay, almost identical description too.

Any reason why I should consider RTM instead of an eBay hottie?