Surprise in my air filter

[DG Boxster]

Thanks for the help guys. It is either a Fabspeed "V-Flow Air Intake System"
Porsche 986 Boxster V-Flow Air Intake System - Fabspeed Motorsport

or an Evolution "EVO High Flow Intake"
http://www.evoms.com/Porsche_986_High_Flow_Intake_System_EVOMS_p/intk986hf.htm

I'm not yet sure how to tell as they both look very similar. I think it might be the Fabspeed since the housing is metal and the EVO claims to be plastic.

Their dyno data shows a modest increase in power and torque, but mine is missing the gasket on top (and the side gasket isn't good) so I'm sure it is drawing in heated air.

I'll read the threads, but I'm inclined to convert back to stock. We may be moving to a desert-type area and I don't want a less efficient filter.

I wish I'd found this on the Pre-Buy, but it wouldn't have changed anything anyway. The PO was freaking out over the mechanic even touching the car. There were no service records, etc. I knew going in there would be surprises like this.

The worst part is this note on Pelican Parts
NOTE: The 1997-99 Boxster OEM air boxes come equipped with extra resonance chambers and may require that they be removed (or the engine dropped) to remove original unit
If that's true I'll be sticking with this filter box

[ELoomis]

Here is a used stock box. No affiliation.

2001 Porsche Boxster 986 Engine Cold Air Intake Box Mtoor Sensor MAF 61 461 | eBay