Your opinion on FlowTech Longtubes..
 

They are cheap but are they worth it? What do you have to say about them?

Same thing as hooker headers, just cheaper really. Get them ceramic coated and do work son. I know some guys who rock them on Z28's and one guy with a GT from my hometown has them. They are just like the hooker ones with the off name brand. Only thing I can say is that you have to use their X pipe and I hate Xpipes. Also had to bang a header pipe to get them to fit.

water and electricity first man

ha ha thats all taken car of.. and whats the difference between the H-pipe and X-pipe?

Sound really. One is muscular and one's smoother. The main difference is the Flowtechs have a 3-bolt flange vs. the Hooker's slip-on. After dealing w/ Hookers though, I'd probably get something more street friendly such as Kooks since the thin tubing and 2-piece driver header messes w/ the O2 sensors.