Dont get me wrong, driving a sports car is always fun, but there's always the grinding feeling inside of wanting more power. And that's exactly how I've felt for the past year of owning my car. And finally I pulled the trigger, and out of the barrel came a stage 1.5 SFR tune (along with an ISR exhaust). After having it in my car for a few weeks, I can definitely say the money was worth it. Quicker acceleration, higher top end, and little to no turbo lag, life is good.