ok, gutting the precats is not necessarily illegal. :rolleyes:
as long as it passes emissions in your particular state you are perfectly legal.
(IANAL). you CAN gut the precats and leave the main cat and still pass emissions... (depending)
i'm not commenting on the legality of the mystery mod specifically mind you.
just several people in here talking about gutting precats as illegal.
I don't condone gutting cats, as i like our air... (tree hugger! :D)
But as long as you still pass your state's emissions test you are fine in my book, maximal performance (engine) and as far above the limit as possible, is what i shoot for.
