Perrin Intake
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This is a discussion on Perrin Intake within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Hey guys i know this has probably been answered before but on perrins website they say you do not have ...

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    Registered User teddy37's Avatar
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    Perrin Intake

    Hey guys i know this has probably been answered before but on perrins website they say you do not have to tune for there intakes. If you are running a stock tuned ecu that is. Is this true or safe, to not tune for there intakes. Thanks also i have a 2011 wrx
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    Master Baiter EJ257's Avatar
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    I'm not sure about the '08+ cars. Previous MYs required a tune (as per testes1010).
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    Registered User teddy37's Avatar
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    I looked under the 06-07 years and it doesnt say anything about not tuning like it does for 08+ so maybe its just the newer cars that dont need tuned which is kinda hard to believe.
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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by teddy37
    I looked under the 06-07 years and it doesnt say anything about not tuning like it does for 08+ so maybe its just the newer cars that dont need tuned which is kinda hard to believe.
    Do you have any way to monitor fueling?
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    Registered User teddy37's Avatar
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    as in fuel/air ratio gauge or something no. Thats why it kinda worries me
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    Registered User teflon_jones's Avatar
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    You should be perfectly fine assuming you don't over-oil the filter and cause MAF issues. Technically the older models don't require a tune to run with an intake either, but the answer to the question varies a lot in terms of the particular intake, your location (i.e. altitude), and what you use the car for/how you drive it.
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    Registered User 11blackwrx's Avatar
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    from what ive heard you have to tune for an intake, im tuning mine when i put my intake on tomorrow
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    Moderator rage-wrx's Avatar
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    Perrin provides a map for their intakes if you buy the AP from them.If they say their intakes do not need a tune as such,why do they have intake specific maps?
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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by teflon_jones
    Technically the older models don't require a tune to run with an intake either, but the answer to the question varies a lot in terms of the particular intake, your location (i.e. altitude), and what you use the car for/how you drive it.
    Have you seen the MAF scaling changes that need to be made with the various stock-sized intakes on previous MYs?
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    Registered User G8toWRXDave's Avatar
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    From the Perrin website:

    "PERRIN Intakes will run safely with all stock cars, running stock ECUs. No modifications are required."

    "For clients with re-calibrated ECU's (Reflash or similar), or cars with aftermarket parts installed. This intake will require custom programming due to slight changes in AFR. Please contact our Tech Department for additional details."


    My take on it is that if it is your only engine mod, you dont have to tune. but if you have anthing else done, you should re-tune.

    If you plan to get an Accessport, get a supported intake like the Cobb SF or AEM. If you only want the sound, i think the Perrin is safe.
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    From what I've read .... intakes don't so much for the newer models. Id save your money for a tune or for a downpipe.

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by Methodical4u
    From what I've read .... intakes don't so much for the newer models. Id save your money for a tune or for a downpipe.
    2011 Subaru STI stage 2 plus intake. Before/After intake test. - NASIOC
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    that's interesting.... but it makes me wonder since injectors and a fuel pump were added at the same time. I'd like to see just a base run and then just an intake with nothing else. There is and always will be a big debate on a lot of cars of what intakes really do for some of them if any.

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    Registered User teddy37's Avatar
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    yeah i know intakes dont do much but my buddy is giving me it free so i figured why not. Its brand new too
    2011 Wrx DGM TP Stage 3
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    Quote Originally Posted by teddy37 View Post
    yeah i know intakes dont do much but my buddy is giving me it free so i figured why not. Its brand new too
    If perrin says its ok im sure it is.

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