Who belives in the IPD plenum

[husker boxster]

I have the 82mm GT3 TB and IPD plenum on my CSS. I did not do a tune (not a believer in them), so I did not feel a lot of gain. There seemed to be a bit more grunt in the 2K rpm range, but that was with the butt dyno and I might have been looking for justification for the $750 outlay.

I got to thinking (a dangerous thing for sure) that maybe that combo contributed to my bore scoring by was pushing more fuel into my cyls than the factory setup. But I was told by the engine builder it had nothing to do with that or anything I'd done. It was just a poor design by Porsche. YMMV.