I wonder how much power can be found between the stock midpipe and a high flow catted pipe, more from an Xpipe I am sure because they have a better scavanging effect.
$400-500 for a catted X-pipe though, wonder if its worth it performance or sound wise?
I just heard a SLP Power-Flo on youtube and they sound pretty good, not a LM1 or LM2 fan but these Power-Flo are nice...again not sure about performance gains though