Here are the links for you again. They did open for me.WILDEBILL308 said:Hes4all, I liked the test reports you posted with the first link but the charts wouldn't load. I also like the bigger standard filter. OK you can have a laugh on the newbey does the out side filter housing come with the filter or is that separate? I looked at the Aero Turbine muffler when at the 6 State FMCA regional rally in Shawnee OK last month. Looked good but I am Leary of some of there claims. They were more pricey at the show as you might guess.