Hey guys. Ive always had airleak problems on my 80metra (smallport)'d e50. Even the smallports are fucking huge and i also heard that Chris Paz adds material on the smallports he builds. So im thinking about adding some material to get a better seal. So what can i use to add material other than a TIG welder or JB weld? what about that aluminum putty shit? or is that pretty much just like jb weld?