My stock turbos have just died and it looks like it is time to go single. The thing is I want something that is going to spool fairly fast, but also give me more horsepower than stock since i am spending alot of money on a single. I am going to be doing a clutch and fuel and VPC when I do the single, and I am looking to make 500 or maybe a little more horsepower on moderate boost on pump gas. I do not want a ton of lag, i would like the turbo to make full boost at the same point the stock turbos do. I was also considering maybe an SP engineering turbo kit. What do you guys think is best for making 500 RWHP on pump gas and being able to make more HP if I want to, while also not spooling really late in the RPM's. Thanks, and by the way, my car is a 6 speed.