20 HP and 24 lbs torque with fuel,air,timing possible?

[j.fro]

I remember seeing this and being surprised. I've got the same setup, plus a bit more and dynoed at 244rwhp.
IMHO, 300 FWHP is about the best you'll get from bolt-ons with the 3.2.
I do not think the original poster's question is possible without other work.

Originally Posted by KRAM36

It takes the right combination of parts to get more power out of these engines. On a 2003 Boxster S with a Tiptronic trans I believe 313 HP can be obtained possibly more with no internal mods to the engine itself, a manual a little more if you're willing to go catless. Not cheap to get there, but it can be done.

Example: Boxster S Manual, not sure what year it was.

Mods: Stainless silencer (muffler) and manifolds (headers) - K&N panel - 75mm throttle body - custom 83mm intake - custom remap - MDS underdrive pulley.

Got a dyno of 271.9 HP add in 18% drive train loss = 320.84 HP. If he had done a complete air intake upgrade, at the least would be an extra 5 HP and would be 325 HP.