I have had my Cherry bomb vortex mufflers on my 73 cougar since 1999 with my Ceramic coated hooker super comp headers and 2.5" mandrel bent system with H-pipe. The cougar is in Michigan and spends its winters in my brothers barn. The outside cases look relatively untouched from outside elements, just some black paint flaking off, no corrosion. I think they are built better than flowmasters, even the welds on the case look new. I have yet to blow out the glass packing inside. This was my summer DD even in the rain. Sounds just as good if not better than the day i got them. I went to a custom exhaust shop so they were $100 a piece but worth it. Most people think i have flowmasters just from the sound. Go get ya some!
2002 WJ Ltd. 4.7 V8, QuadraDrive
1973 Mercury Cougar Xr7 convertible 351CJ, C6, 9" rear
1970 Kaiser-Jeep M35A2 W/OW 6x6 Multifuel D-Turbo.