i know that the d-1sc and p-1sc both share the same housing, with the d-1sc having a more aggressive compressor wheel. i've heard the d-1sc's provide more boost in the lower ranges than the p-1sc when both are pullied for the same peak psi. for around 8-10psi, will the d-1sc be worth getting over a p-1sc? the car is a 98 4.6l. no mods yet, but if i go s/c it wont be on the 100% stock engine. intake/exhausts/bolt-ons will be done before the s/c.