Now this may all seem far fetched and semi-retarded but bear with me. Lets say that my 3.8 L is swapped for a more desireable 302-331. Then lets say I need to pass emissions to get it back on the road. Now lets say I want to avoid as much hassle as possible. What should I do? I want to keep the VIN it has so as to not have to report to the Insurance company that I now drive "Hot Rod". What can I do? Should I fabricate a temporary exhaust that puts an additional catalytic converter behind the ones already in place? Is it possible to tune the car with 92+ octane to the point of the exhaust comming out smelling like roses? But seriously, I need any and all opinions, stories, success, failures or anything else before I actually do go out and have a multi-catalytic converter exhaust made up.