The guy is selling it for $100.00 complete with pipes, boots and clamps. I thought it was a good idea from all the posts I have read. Do you guys think it's not needed? I pull a 15k trailer about 6 times a year, other than that the truck is my daily driver with 145K + miles. You can see the mods i have done so far and don't plan on too much more as far as power is concerned. Any additional mods will be directed towards reliability and maintenance.