Cobb AP + Different Exhaust?
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This is a discussion on Cobb AP + Different Exhaust? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Hey guys. So in my last post I asked about the nameless performance axle back exhaust. Got lots of great ...

  1. #1
    Dog
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    Cobb AP + Different Exhaust?

    Hey guys. So in my last post I asked about the nameless performance axle back exhaust. Got lots of great answers thanks for that! I want the Cobb Access port but I am almost under the impression that I can only run Cobb parts in my car with maps. Can I put the nameless axleback on and still run a cobb ap map safely?

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    Registered User xFalleNx's Avatar
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    Yes. The only things that will matter for the AP are the intake/downpipe you use. It's all in Cobb's map notes.
    --Anthony 2011 DGM WRX stg2+sf intake WTFtuned \_(ツ)_/

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    Registered User Z31_2011's Avatar
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    But u can get other maps and tell him what parts u have he will do a custom map for u


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    Registered User WRX-maniac's Avatar
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    Well DP's really dont matter on brand either, as long as you get a 3 inch downpipe like the cobb. The bellmouth and divorced wastegate dont really matter. The big thing is the intake, as different intakes will change your MAF readings. But most companies will send you a stage 2 map using the maf scale to fit their intake. For instance, I have the Perrin CAI, and invidia turbo-back. Chris, the tuner at perrin, just takes the cobb stage 2 map for the preferred octane and changes the MAF reading for the perrin cai. Hope this helps.
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    Registered User WRX-maniac's Avatar
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    To further describe this, when you buy your accessport you can download the accessport manager for free to your computer. In my case, Perrin e-mailed the new map to me, I connected my accessport to my computer, uploaded the perrin map onto accessport manager, then downloaded it to the accessport. Then just select that map from the accessport when re-flashing your car.
    2011 WRB WRX hatchback---Stage 2
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  7. #6
    Registered User xFalleNx's Avatar
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    Quote Originally Posted by Z31_2011 View Post
    But u can get other maps and tell him what parts u have he will do a custom map for u
    In this case, who is "him" and "he"? Cobb will not do a custom map for you if you buy their AP and then install different parts.

    Quote Originally Posted by WRX-maniac View Post
    Well DP's really dont matter on brand either, as long as you get a 3 inch downpipe like the cobb. The bellmouth and divorced wastegate dont really matter. The big thing is the intake, as different intakes will change your MAF readings. But most companies will send you a stage 2 map using the maf scale to fit their intake. For instance, I have the Perrin CAI, and invidia turbo-back. Chris, the tuner at perrin, just takes the cobb stage 2 map for the preferred octane and changes the MAF reading for the perrin cai. Hope this helps.
    To further elaborate on this, Cobb's map notes strictly state that the DP has to be catted. That's really all that matters. You can't run a catless DP on a OTS Cobb tune and not expect problems. As far as intakes go, last time I checked Cobb has OTS maps for the Cobb SF intake and the AEM intake. If you wanted to go a different route with the intake, like WRX-maniac mentioned, you'd need to have the map adjusted for that.
    --Anthony 2011 DGM WRX stg2+sf intake WTFtuned \_(ツ)_/

    Official Subie owner as of 01/10/11
    Stink Eye Mob #87

    Bye bye Bimmer
    Hellooo '11 REX

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