APS makes very good stuff. I and my buddies use all of their stuff from turbos, fmics, intakes, exhausts, and fuel systems. But remember this when making your decision- APS is very quick to post their numbers and power outputs for their parts - easy for them when your under sea level in aussie land! but i love the stuff. no prob's with their turbos, just wish they had ext. waste gates like greddy. but they're basically garret turbos - i.e. sr 55 = gt 35r

 

There are two shops here in town that specialize in WRX/STI tuning. and both use APS products exclusively. The owner of one of the shops has an STI w/ 500whp on pump gas (91!) -- all APS, from the FMIC to the turboback, and it is his daily driver (50k+ miles a year, he drives it to shows and conferences).

The APS up-pipe is the best example of their design mindset and quality. It is the only turbo inlet I have seen that has clearly been engineered by professionals; every other one out there (even stock STI) looks like a piece of plumbing out of a discount bin at the hardware store in comparison.

 

true dat - bad as* up pipe, best i've seen & used.