Intake issue on a 2013 wrx
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This is a discussion on Intake issue on a 2013 wrx within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; first of all I am not sure if this is the right spot for this thread, if it isnt please ...

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    Intake issue on a 2013 wrx

    first of all I am not sure if this is the right spot for this thread, if it isnt please slander me on the internet until the end of time, or till i fix it and put it in the right spot, but if it is the right spot then

    So this is whats going on, i just got a new Cobb SF shot ram intake for my 2013 wrx, install went easy but my car does not like the intake at all, at higher RPM's it stutters and runs rough, double checked everything, disconnected the battery during install, so im not sure whats going on. anyone have any ideas? i remember seeing someone saying that if you install anything you should get your ecu tuned to work with it, i didnt think that installing a intake would make my car run that bad ~_~
    mind you my other cars i worked on was a 95 GS-T Eclipse and a 2004 wrx which both took the new intakes like champs. so any help to this issue would be great, thanks all!

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    Registered User vu_tang's Avatar
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    Intake issue on a 2013 wrx

    Your ECU doesn't know what to do with all the extra air. You are damaging your motor without a tune. Uninstall the intake or get a tune before you do long term damage.

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    see thats what i figured, makes me sad, im so use to just install and go, boo lol.

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    and the Funky Bunch Calvinball's Avatar
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    You absolutely must tune for an intake on the 3rd gen cars.

    That said, it almost sounds like there could have been a leak too.
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    Registered User shadidd's Avatar
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    Intake issue on a 2013 wrx

    Cobb AP is what you need.


    Sent from 125mph

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    Registered User jilty's Avatar
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    I picked up the same intake with the box from a buddy 2 weeks ago, just waiting on Cobb to take my money once the 2013 maps are out.....told me they are waiting on 2013s to test on....if only I lived in texas.

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    Registered User starkall's Avatar
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    Intake issue on a 2013 wrx

    Cobb has stated that a tune is not required for their intake but highly recommended to get the power gains of the intake. Rallysport direct says the same. As long as the intake has the same size Maf tube it'll be ok but I still recommend a tune to get the performance gains of the intake.

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    zax
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    I doubt it's the intake. Cobb has designed the SF intake to mimic the airflow of the stock intake across MAF sensor. Are you sure that you installed the MAF correctly (not backwards) and that it's connected? Any CELs?
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    Registered User Yamahar6311's Avatar
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    Intake issue on a 2013 wrx

    You'll run it too lean if you keep it. Need AP STG 1 map

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    zax
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    Quote Originally Posted by Yamahar6311 View Post
    You'll run it too lean if you keep it. Need AP STG 1 map
    Do you have any empirical data to prove this statement? Or are you just regurgitating what you've heard?
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    Registered User Yamahar6311's Avatar
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    Intake issue on a 2013 wrx

    Yes sir. I have the same intake. And when I first got it and didn't have the AP the check engin light came on and it clearly reads lean

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    Registered User starkall's Avatar
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    Intake issue on a 2013 wrx

    You can run the SF intake without a tune and it will be fine. But it provide no performance gains and be a just a noise maker until tuned.

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    zax
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    Quote Originally Posted by Yamahar6311 View Post
    Yes sir. I have the same intake. And when I first got it and didn't have the AP the check engin light came on and it clearly reads lean
    Do you have a wideband O2 sensor installed? If not, you cannot make this judgement. A "System too lean" can mean a number of things.
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    Registered User Yamahar6311's Avatar
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    Intake issue on a 2013 wrx

    Once again, I'm just going from what happened to me. My opinion is just one of many. It's up to the person who started the post to make their decision.

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    Registered User Yamahar6311's Avatar
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    Intake issue on a 2013 wrx

    Quote Originally Posted by zax View Post
    Do you have a wideband O2 sensor installed? If not, you cannot make this judgement. A "System too lean" can mean a number of things.
    And how does this mean a number of things? It's an in your face answer. It's a 2013. Not a 1993, what the hell else could it be???

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