I've been very happy with my katana kit. In my opinion, the amount of power it produces compliments the handling of the car perfectly. Enough to be a hell of alot of fun but not too much to make the car off balance. Plus, support from Sector 111 has been great. I purchased a relatively early kit and when they had discovered that the pulley they sent with it was not up to the task, they sent out a new one w/belt before I had the chance to ask them about it. It gets a
from me. good luck