I wanted to share with you my experience with an exhaust pipe stretcher.  I bought one of these a few years back to build my custom header for my VW rail.  I was unable to get this to stretch Hooker pre-bent exhaust pipe.  The tool finally broke and just for note the fingers not weld back together well.  The fingers are impregnated with oil so as the fingers heat up the oil will come out.  I tried using one with and without heat both with...