i still love my manifold. it has made it through a nasty cold winter, and held up perfect through all the hot/cold cycles. the gains are also very noticable.
i remember when i left PG afterhaving it installed, it was raining and the car was all over the place. the turbo just wants to go ! spool up is much improved over stock. at one point i had a full TBE on my car. i feel that the manifold by itself made more power than the full exhaust. on a car that has a full exhaust, it would be crazy !