I am getting ready to run a 4" straight pipe to a 7" miter stack.

I am having a heck of time finding an adapter to go from the 4" 90 degree to the 7" stack. I have had people tell me I can get one for around 40-50 smackaroos, but can't find any. I would rather find the plate mount that bolts to the bed, but at this point, I am willing to use any 4" to 7" adapter and fab a mount.

Where can I find one? I have tried most of the major stack and exhaust dealers, to no avail.