This exhaust note is very controllable, which is why we love the Mac anti-reversion mufflers. We left the stock headers in place because with the stock heads, we did not want to loose any HP for the moment. Until we get the intake side of the engine mods going, we won't see any great increase in HP at the low end of the RPM spectrum. Once again we turn to Mac for exhaust. This larger area greatly aids in the merging of exhaust gases for increased heat and exit velocity.
Installation is easy, but clumsy.
Note the mounts for the oxygen sensors on the pipe. It comes with one Gasket and bolt hardware. Here is the stock h-pipe with6 catalytic converters in place. You can see our Mac Flowpath muffler cat-back system in the rear. If your stang is already lifted, lets go to the next step.