Aero airbox query

[egor110]

Ive just purchased a old 9-3 aero , it sounds like it's had a dump valve fitted ( which I don't want ) but I'm not sure where to look.

[AJB88]

You literally just need to buy the OEM airbox and filter from ebay or similar.

[egor110]

Whereabouts am i looking to see if its got a dump valve?

[AJB88]

it hasn't looking at that, thats the OEM valve. It will be the cone filter that is making the noise.

[Saabaholic]

It does not have an open dump valve as its an air-mass system.
If there was air loss it would stall all the time.

Yes that hot air-intake needs to go. Loosing 4 to 5bhp there easy.