on the smaller trucks, it is not cost effective at all.It is the engine year that is important. You can drop a new diesel engine in your old truck and the smog nazis will leave you alone.
more importantly, the state has killed the small businessowner and has handed us over to the large corporations.If you ask the smog nazis, that's kind of the pointThe (un)intended consequence is you now need $60k+ to get one vehicle to start a business. It is like our State wants to suck. Sorry this is way OT but people don't realize these smog nazis have no oversight and they're too busy trying to pay their 'fair share' of taxes to care. I promise you not one of their houses were built out of the trunk of a prius.
I feel much better now