I finally coughed up the money for a Tubi last month (thanks Tino), but I couldn't decide what to do with my cats. Most guys on the board have said that a Tubi with strait pipes was just too loud, however the 348's I have heard with a Tubi and cats in place weren't loud enough in my opinion (great sound, just too restricted). I ended up ordering a pair of euro resonators from Stebro (strait pipes w/resonators). The build quality looks good, however the raw stainless steel pails by comparison next to the Tubi system. I went out and purchased a pedestal buffer, and after less that an hour, the euro resonators actually came out looking pretty good. I am going to try to get the system mounted on the car tomorrow and I'll check back with you guys to let you know how the sound turned out.