JWT was instrumental in the development of the original Garrett GT2860 turbos years back and has always used the GT series as the bases for all of our Z32 turbo upgrade kits. First again, JWT is proud to make available our newest Sport turbos with the new GTX Port Shroud compressor housings and phenomenal GTX Billet wheels. Anyone that has used our 700 series turbos but where forced to use the smaller A/R exhaust housings for better spoolup, will love these state of the art GTX compressors. With the extreme improvement in compressor efficiency, you can now get that same spoolup response using the larger exhaust housing without the exhaust flow choke of the small A/R housings at peak power! This is the first Z32 turbo upgrade to feature a Port Shroud Compressor Housing into the O.E. flange configuration (or any other come to think of it). When you add an ultra high efficient billet wheel like the GTX, a port shroud is needed to allow the wheel to keep flowing under all pressure ratios and not choke off early.