I found 3 "different" test pipes on ebay. Each more expansive than the next. What I don't understand tho is that it's the exact same picture with a different name on it. Here are the 3 links
http://www.ebay.com/itm/2003-2006-Ni...d62340&vxp=mtr
http://www.ebay.com/itm/2003-2006-Ni...f2e2d7&vxp=mtr
http://www.ebay.com/itm/JDM-Exhaust-...6fab64&vxp=mtr

Main questions; has anyone used any of these? If so do you suggest getting it? Any insight is appreciated

 

All the same generic crap. They just re-brand them. You will most likely need an O2 extension (non-fouler) so it won't cause a CEL.

They have been discuss plenty of time. Do a search and decide for yourself if they are worth it.

 

They rule better than my top secret ones

 

They are disposable, plan on changing them out monthly when they crack

 

thought so, what about helix v2 test pipes? any good?

Just did some research and I think for $50 helix v2 pipes will have to do for now, thanks guys