Could this idea work ? Did other guys did this ? 318 infos

If you are really low budget keep the single exhaust and have a custom exhaust come off the Y with 2 1/2 pipe to a straight thru glass pack and out the back with a 2 1/4 tail pipe, like the 273 HiPo. If it is too loud just add a second 2 1/4 glass pack before the end of the tail pipe.