I've had my 7mgte rebuilt w/1mm over sized ferrea valves and 0.040 JE pistons and racing cams. I'm to the point where I need a turbo. I was looking at getting the GSP GT3582r turbo. Money is starting to get a little tight. Ive done a search and did not find any thing on GSP turbos. Based on the way the motor my hp goals are around 600. Has anybody used this turbo before or heard of any pro/cons about GSP?