So far, I've got my setup planned like this: (for my 92 IFS k2500) Main Diesel Tank, 34 gallons Vegetable oil tank, (I think its a 24 gallon), mounted in the spare tire area like on the burb. Running veggie is great, but the unfortunate downside is the fill up- I would like to extend the capacity of my veggie, by putting in another 34 gallon tank. Here is my question: The only location to fit the "shaped" tank is parallel to the stock tank located on the drivers side. This however, causes the slight issue of where my exhaust is supposed to route. Can I route my exhuast outside of the frame rail on the passenger side, then just drop the muffer and exhaust the same way the ford lightning does? Its not really a matter of "if it can be done", but rather if it would restrict the exhuast by a huge amount. The other choices are to use "side saddles" but I am not too keen on that. I've thought about adding a transfer flow, but I want the bed space.