Most S/C applications for the Challengers will not be able to work with headers for the limits of the bottom end. About 560hp is the rods limits. You will have to pick your poison from the two routes. We just dynoed the Kooks setup with out the Corsa cat back and ended up with 464hp and 450 tq at the crank. This is also using the Diablo tuner for the 6.1L.
ORIGINAL: davecpa
Cost of Headers $700, cost of supercharger $6,000.... look on that guy's face in the mustang as you blow past him with the extra 140 hp on either the R\T or the SRT ...........priceless.