y5mgisi
1 ton status
This kit looks cool, but its the clip on style and not the screw on style like the one you posted.
http://www.speedwaymotors.com/LS1-Fuel-Filter-Fuel-Regulator-Kit,41791.html
http://www.speedwaymotors.com/LS1-Fuel-Filter-Fuel-Regulator-Kit,41791.html

I just know it was engine related. I've replaced intake, lifter valley, and valve cover gaskets. I didn't see a use for it