I used to run purple hornies on one of my old dragcars, to me it was kinda restrictive so I tossed them at the track saved for romps on the street....hehe
Question: Is this a hot rod race truck or just a cruiser?
In my old 76 Silverado I just ran turbos that I got from the local muffler shop, they sounded good, not to loud and not to quiet.
I've also heard that "flowdisasters" are the worst performance muffler out there, who knew they were such pieces of $hit??
But dam it man, they were all the rage back in the day - everybody I knew either had them or wanted them. Cp