no, no, no. ok headers generally come with some kind of d/p. the power log replaces the froont exhaust manifold, exactly what the header replaces..no-no. get headers see what comes with it, bolt up to ur factory catback, which is quite good, and on the end, change mufflers according to ur like..many different opinions...leave resonator on. without it, it sound sh!tty, atleast mine did.