I just dyno-ed my 2001 Boxster S for a baseline cause I 'm going to install intake with IDP plenum and 74mm throttle body. But looking at the graph, there's something going on around 5000 rpm, and then the power doesn't rise after as it should. Could be a variocam issue? Thoughts? Car has Fabspeed Maxflo exhaust and some mystery ECU upgrade that looks pretty lean.
