With your suicide doors causing driver and pax to exit car toward front--the headers need to turn down sooner and tuck in toward the lower frame rail tighter to lessen the odds/chance of leg burn--its hard to get out of the seat and stand up next to the car without touching the back of your calf--

Look at the pipes and building process on the 32 five window in my gallery---stainless and I used a Nascar type merge collector and Cobra type muffler -----