This is mostly for dohcvtecaccord. The swap in my friends accord was not stock at all and only ran a 151 at best. We had no Idea at all what the fuck the problem was. He had a lightweight fly, stg.2 clutch, stg2 Cams, fuel rail, fuel reg., cai, cat-back, and I think that's it. Well anyway the other day he went up to his exhaust for no apparent reason and there almost no exhaust flow! his cat was completly clogged! he had mad back pressure. Now it flies! at first he had it dynoed at 150hp, and 121, torque. Pretty weak for all those bolt-ons. In fact weaker then stock! Well anyway, just wanted to let yall know.