Exhaust decision, opinions?

[MARKDTN]

Originally Posted by GMJimmy

... I have to run the cats because of environmental laws. If this was a factory stock truck I wouldn't need any smog equipment but it's modified and classed as a hot rod so It has to meet the emission laws at the time it was modified. It has a 2002 GMC engine in it so it has to meet 2002 rules. It also has a closed fuel system and evap cannister. I don't have to smog test it but It has to have the equipment...

Interesting! I do all my restomods with closed fuel and evap. Pretty simple and you don't smell raw fuel. I did not know (parts of?) Canada forced you into engine year of manufacture emissions. So you have to be full OBD2 with 4 O2s and pressurized fuel tank as well as cats?