Originally Posted by Stavros

Ive ran and dealt with tons of XS Stuff, and its NOT the best on the market, but it doesnt try to be, as its about as good as a lot of stuff that costs 3 times as much, thats for sure.

Mate of mine has a XS GT28RS on his S13, spools up faster and gives more power than the Garrett T28 that was on it before.

EscCosRacer has one of the above on his Renault 5 track car and as ripping past all manor of supercars with no issues on track.

The DJ Craig Supra had a XS GT45 on it which gives more power and spools up faster than the Trust T88 that was on it before it, and it used to run mid10s at 140mph+

The XS Power Supra runs 8.0@170mph with their inlet and exhaust manifolds, chargecooler, etc etc on it.

Plenty of Mustangs etc in the states running 10s with their twin turbo kit.

Know plenty of people who have changed their HKS manifolds which were always cracking for an XS one, and had no more, and often less, cracking issues.

Countless 200SXs, Skylines, Supras, etc, across the country running their front mount intercooler kits, exhaust manfolds, dumpvalves, wastegates, etc.

Like I said, its NOT the best stuff in the world, some stuff (like their Cossie manifolds, Evo intercoolers, etc) are pointless as the stock stuff is SO good anyhow, but overall, its mint stuff for the money.

If your not a blinkered badge snob, or just so minted that paying 5 times the price dont matter to you.