Well, if you want an older platform, have some mechanical knowledge, an SRT6 is the cheapest HP around. Everyone in the SRT6 community has their road to more speed. The basic and the cheapest route to more HP out of an SRT6 is 1) Cold air intake 2) a smaller supercharger pulley 3) a tune to pull that altogether. Those 3 will produce the most HP. Now from there, there are several more mods that will chip away tenths of seconds in quarter mile terms. Good luck, but I have to tell you, it isn't the most friendly car for an old muscle car guy to work on. So, don't compare it to the Chrysler/Dodge family at all. Just sayin'.