Bloomington, MN -- (SBWIRE) -- 03/13/2012 -- Products in aftermarket secondary filtration (By-Pass Filters) provide benefits for nearly every type of commercial engine application and at the upcoming SAE Commercial Vehicle Engineering Congress; Karl Dedolph, President of D3 Consulting, will lead a panel discussion on the “Technological Advancements in Secondary Filtration Devices”. The Mid-America Trucking Show displays and showcases numerous by-pass filtration technologies every year. Read the full press release at http://www.sbwire.com/press-releases/by-pass-filtration-at-mid-america-trucking-show-mats-to-be-reviewed-by-d3-consulting-131187.htm