[mgarblik]

It does seem that if Franz had a system that used a smaller filter element, more geared toward smaller gas engines, with salesmen like Brad, they would sell many more of the systems. The packaging could get a little tight in many car applications, not so bad in pick-ups, suv's. These by-pass filters have been around for a VERY long time. I remember seeing them advertised in JC Whitney catalogs when I was just a kid, probably 1966-68. My high school auto shop teacher swore by them and I remember all of us kids snickering when he "changed the toilet paper in his car"!!. I am guessing the fact that toilet paper is used is why a smaller size is not available. Then you would need a dedicated filter element. But it would be easier to fit in the average car if it was smaller.