if it was a short track the dg and stock pipe far surpasses the power off the line compared to others because a pipe produces roughly the same power just shifts it arround making more felt power coming on strong low to mid but mellows out up top and vice verca for top end pipes thats the way i see it.
also sauce440 do you know if there is much difference between them or are there just surface finish differences. like crematic,chrome,bare metal header?