has anyone had one or the other or both? i'm trying to chose between the two and can't figure out which one is better. the break down is like this: Perrin $1485 28 x 9.25 x 3.5 906.5 cubic inches APS DR525 $1495 33.5 x 9.375 x 3.25 1020 cubic inches so the APS is bigger and i can still use my fog lights and the price is the same. but the last time i made an order from Perrin they messed it up and it took way to long to get to me so they said that they would discount my next purchase. i have a bunch of Perrin stuff and would kind od like to stay with the same brand but.... if something works better.... i have no idea. any thoughts?
It depends on what turbo you are running. If you are making over 400 to the wheels get the aps. If you want to spool up quicker and you are running more like 300 to the wheels get the smaller perrin unit.