I was riding down the road the other day in Northern Va., and from behind me about 1/4 mile I heard the loudest bike I've ever heard before. Turns out, it was a custom Valk Standard done up sort of in a 70's motif with super long sissy bar, etc. and the loudest set of 6 into 6 pipes I've ever heard. I let him pass, then just had to catch up and ask...They were Hard Krome pipes that looked like this image below .
They were obnoxiously loud, spitting fire out the back, and crackling away, but man were they cool. I had never seen these pipes before. Do they ever come up on E-bay, or the board?

Kerry