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STI airbox on a WRX?

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Old 05 March 2010, 11:59 AM
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WRX_NOOB
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Default STI airbox on a WRX?

Im new to the forum and completely new to the world of turbo tuning.

Ive owned and modded hondas for the past 8-10 years with some great track builds and therefore know that alot of stuff is interchangable on different models.

I currently own a 2001 bugeye WRX which has a cone filter and no sensor. I know this is killing the power on my car and need a replacement asap.

Can i fit a stock bugeye STI airbox in its place? Will i need a MAF sensor?

Any help would be great as im going to place an order today.

Cheers
Old 05 March 2010, 12:38 PM
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The Airbox will fit straight in.

If you dont have a MAF now the car must be running on an aftermarket ECU that does not require a Maf.
Old 05 March 2010, 12:45 PM
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Theres no record of it having an ecu. Ill check. Where is the ECU located on a scooby? Passenger side footwell??

Cheers for the help.
Old 05 March 2010, 12:49 PM
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Yes passenger footwell, i would look again for the maf it could be located in the induction kit housing.

If i has the Maf it will fit in the airbox housing all the same. I would check on here or ebay before ordering an airbox as they are not cheap brand new. Infact i have one with a slightly used green panel filter.
Old 05 March 2010, 12:57 PM
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Cheers mate. Very helpful info.

Ive been quoted 40 quid from jap performance parts including a filter. How much would you say is a fair price?

Are you selling yours?
Old 05 March 2010, 01:35 PM
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Thats a fair price, when you said order i assumed you were buying brand new.

Mine is over in N, Ireland so would be more cost effective for you to source one there on the mainland
Old 05 March 2010, 01:43 PM
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Yeah shipping would work out quite pricey.

Cheers for the help mate. Much appreciated!
Old 05 March 2010, 04:26 PM
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I can't imagine someone has ditched the MAF and moved over to using the MAP. The newage MAF is pretty robust and is used for most applications to over 400 odd BHP.

Unless your bugeye is running massive mods I'm sure The MAF is somewhere.

AFAIK the WRX and STi used the same inlet tract........it was one of the things that Subaru actually got right on the bugeye LOL. I just wonder if the guy you bought it from has the original tucked away in his garage somewhere ?

Shaun
Old 08 March 2010, 01:12 PM
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I can confirm that the MAF is connected to the cone filter.

The guy that i purchased it from went on a spending spree in Scooby World and ditched the airbox completely.

Ive purchased the STI box which should perform slightly better
Old 08 March 2010, 03:33 PM
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don't forget the intake on the front and the resonator box in the inner wing.
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