I probably should have just PMd emp cause I think he's the only one who's done it but if I wanted to spray spectrum or spectrum sludge on the undercarriage is it as easy as spraying EVERYTHING underneath the car or can you only spray certain panels like the heatshield etc etc...

Any help appericated

 

u can spray everything. just tape off the moving parts and bolts and such u would might need to get to. or if ur sludging it just sludge what u think needs to be sludged and go from there