and some havent.....greys are fine for pony power lol


ive never seen a .48 make more than 380, i had a good spec motor on a .48, we made lots of mods during it life to try and gain, and gain, and come the end i could have welded the wastegate shut as i was using every ounce of air it could produce. they simply make power to low, and ultimately dont flow enough air to make more. The compressor map and simple physics tell you that.

i even had surge at 36psi, which was the restrictive neck on the plenum, so ran a swedish to overcome it.

unless its tdi rollers

and they do become "consumable" items running 2.5 bar, as i found out several times. one of those being from cr turbos.

im sure they would last longer if you drove like a fanny though