Injen Intake - Subaru WRX Forum
 
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post #1 of 9 Old 02-21-2004, 05:55 PM Thread Starter
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Injen Intake

Anyone running one of these yet ?

Alex
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post #2 of 9 Old 02-21-2004, 09:10 PM
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As far as I know Injen only makes CAI for the WRX, which are bad regardless of who makes them. So stay away.

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post #3 of 9 Old 02-21-2004, 11:34 PM Thread Starter
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just wondering why you would say to stay away ? It seems that they are in the process of testing .
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post #4 of 9 Old 02-21-2004, 11:50 PM
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You would stay away, because it doesnt add much HP unless you are over 350+. In addition, the distance between the filter and MAS is so great that sometimes a CEL is thrown due to a bad reading. Lastly, if it rains, you will sucking water into the engine, which is bad obviously.

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post #5 of 9 Old 02-22-2004, 12:02 AM Thread Starter
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thanks !

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post #6 of 9 Old 02-22-2004, 11:04 AM
 
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Also it makes the regular wrx run lean and I would guess it would make the STi do so also.
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post #7 of 9 Old 02-22-2004, 12:53 PM Thread Starter
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Lean runs could make the engine work a little harder . I meet a guy the other day that has a STI amd is running this set up on his car . He hasn't had any problems with this intake and couldnt talk enough about it . It seems all over the wrx forums that there is a bunch of mixed opinions on inatke vs factory set up . This car is not my daily driver and is more for fun than anything else . Still a lean condition is something to stay away from . I think I may stop by one of the local dyno shops and see what a hour on the dyno will cost . Thanks again !

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post #8 of 9 Old 02-22-2004, 02:22 PM
 
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Cold air intakes differ from short ram intakes. On the wrx Cold air intakes always = bad. Short ram however= a little hp gain but not much. The short rams don't lean the car out as bad as a CAI. Check turboxs.com, they make a "shorty" intake that supposidly gives 10 hp.
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post #9 of 9 Old 02-22-2004, 08:56 PM
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the injen and AEM are the two that DONT cause that much of a lean change.


the reason that the car runs lean, is that the intake piping is larger in diameter, and it throws off the calibration of the MAF. if you hvae a form of engine management, then you are fine. however, on a stock car, an intake wont make any more power then the resonecotmy would...
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