Hi !
I just put new headers on my boxster yesterday !
Who is interested by the "how to" ?
I don't want to translate 3146 words if no one is interested ^^
In the end, if its the only modification on your engine, you will only feel a little more torque under 2500rpm.
You need to have a bigger Throttle body to make the engine breath !
If some are interested, I will translate my write up from french to english
Ben