I've heard different talk about theX pipes and H-pipes. Which sounds better or which is better?Whats your thoughts, because im new to this?

 

Sound is the only significant difference, and since that's personal preference just listen to the exhausts in the exhaust thread and pick what you like.

 

Neither is better, and what sounds better is pretty personal
However, it seems the Xs tend to move the "2K drone" a little
There can be a drone around 2K+/- (accentuated by off-road or high-flo catted H) which depending on your gears and rims/tires could be right at the highway cruise range
It bugs the heck out of some, others don't seem bothered by it

 

Drone has a lot to do with mufflers too...

 

+1 a real lot.