I was under my 300 the other day changing oil. I got to looking at the exhaust set up (3.5/V6) on it. Looks like a dual exhaust could be put on real easily. The cats are way up above the place where the two banks come together.
My question: most (if not all) other set ups have a single cat in the pipe well down stream of the point where the two pipes come together. My car already has two cats in it. Why can't I just put a Borla dual exhaust system on it that takes the dual to the rear of the car? I know the law about not being able to put dual exhaust on a car that never was optioned with dual. But the 300's were (with a V8) optioned with duel.
OK law experts, what do you think?