I bought a set from the same guy- chevy605. They are stockers that he drills out with three 1/4 holes through the first two baffles. Very tame and still quite restrictive. My experience with the guy was very good. My only caution would be that some of his stuff has the catalytic converters in them as mine did. I wound up gutting mine so they are totally open-what a pain in the butt to get the converters out. However, now I love em.
