[Nickanator8]

To answer the original question and get back on topic: there really isn't much on the market for tuning these cars for more power.

There are a TON of products out there that claim 1-5 horsepower gains for a few hundred dollars each, but my understanding is that most people who have done dyno testing come to the conclusions that they don't do squat. 99% of mods out there are either snake oil or simply make more noises without any power gains.

You can do stuff with suspension, but personally, I prefer OEM. At least in my neck of the woods, or maybe my age, I find aftermarket suspension (coilovers) to be too rough and uncomfortable for daily use, which is how I use my boxster.

Short of spending thousands of dollars on forced induction you're stuck at the power figure you're currently at. Even if you could justify the forced induction costs, there really isn't any space to stick a turbo or supercharger, let alone the additional cooling components needed to make it reliable.

My two cents? Just enjoy the car for what it is: an excellent canyon carver designed for momentum and cornering, not straight line power. If you wanted straight line power you should have bought a different car.