Yes, I want to use magnaflow high flows. I did how ever notice the smell today moving it in the garage....dreadful. what would you guys recommend?

 

Personally I would just replace the OEM cats and be done with it, unless you feel strongly that you can get a pair of aftermarket cats installed properly including O2 sensor relocations. IMHO 130K miles is a reasonable lifespan for a pair of OEM cats and using premium fuel helps ensure maximum cat life.