and btw, in the ad of x1-r, they say theirs is different since x1R is an ENGINE treatment not an OIL treatment, so theirs is not the same. well, after reading the article posted up by mr theveed, the bottomline is that both are the same and both aint worth your time and money. hehe.

sayang kaka believe na talaga yung ad nila no? haha increased HP pa daw haha and yung pajero na ginamit nila dun na parang abnormal tumakbo, anyone can do it naman basta bigla mo lang apakan yung gas (throttle) pedal and realase and step again