Anybody here ever tried running with the stock header and just straight pipes or no pipes at all? I know it would be loud as hell, but how did it work? Poncho runs a stock header with glass packs, but they don't look like the perforated core type, more likely the louvered core type, which actually offer a fair amount of back-pressure. There are the freedom pipes, which look (and sound) like straight through drag pipes, but I think they have removable cores. Anybody got those with the cores out? I'm wondering if I'm going to need to go to a power commander for sure if I run straight drag pipes off the stock header. My experience is mostly with carbed bikes, and I'll always rejet going from a stock exhaust to drag pipes, so my hunch is that a FI "rejet" with a power commander will be necessary, but I know that there are people here who have already done some work on these bikes and I'd really appreciate hearing your experience. Thanks in advance!