Dunno. I looked at mine when I had it out this past weekend and the G35 accordian piece is actually pretty much fully compressed when used as the spacer (i.e. likely not a big source of turbulence since the baffles aren't opened up), so I don't know that it's be worth it. It's a great method for first time installers, though. If I get bores enough, I may order the parts and give it a try sometime.PINITI-FX said:when R U doing yours Must.?