Hey anyone on this forum has a Vortech FMU fuel regulator on they3rd gen? Also according to mazdaracing.com they mention it's for stock fuel system and it can work the 2nd gen? Any idea's what they meant by stock fuel system? also do u have to removed the stock regulator? I know for fact u have to remove it inorder to put an aftermarket fuel regulator in but this company is saying it can use with stock fuel system. I am tad confuse. help me out fellas thanks, khris