Ok so I just installed the evo x: fmic, licp, uicp and ams uicp hardpipe. The installation went off great, however when I turned it on after installing, I revved it and I noticed I am getting rev hang. I tap the gas and rpm's will go up then stay at two rpm and rev for about 3 to 4 seconds before coming back down. What could be causing this? I was under the impression that this mod did not require a tune. Any input is appreciated. thanks

 

A tune is not required with those changes, i ran the same thing for a few months without a tune. I'd say check/tighten all the connections, maybe there's a leak.

 

It's all good now man. Thanks for the reply.