What's a 'non fouler"? I just picked up an 18mm nut from the hardware store today for my new downpipe. Can't get much simpler than that. Fred At 06:10 PM 6/4/97 -0500, you wrote: > The simplest method is to buy a "non-fouler" from the local parts store >for $1.50 or so, drill out the bottom, and weld it in. Much cheaper >than the special bungs. > > >