I had the Double D's on my evo WG. Went through 3 sets of them. They looked great, sounded great, but didn't hold up AT ALL. The first set broke the rear mount for the upper pipe at the support. The second set broke the front mount for the lower pipe. The third -and last- set broke the heat shield on the rear pipe at the stand-off at the cylinder head. The customer service was one of the worst I've dealt with- numerous phone calls trying to get warranty, after which only got an 8 week turn around. No set lasted more than 200 miles. This bike is essentially stock. They don't make the Double D's anymore, when I called the last time. I'll never buy another hard krome product- period. caveat emptor.