Below is a link to a new video of our 3.0 Loud X-cellerator cross-flow exhaust system. It includes both a catted (100 cell) street version and a catless RACE version for comparison - under a variety of conditions. The sound of this system is fantastic, whether catted or catless, as is the build quality. 100% stainless steel construction, all heavy duty hardware, dual wall, mirror polished tips will not tarnish from heat. Street version includes our 100 cell cats, designed to enable rapid turbo spool and improved throttle response.