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How can I get access port to work with aftermarket intake.?

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Subaru Subie subaru enthusia

Location: United States
2005 Subaru
Impreza WRX 2.5 Hybrid

Official Answer is no. But it depends on the brand of intake you have. The fact is, some intakes do not work as well as our stock intake & others work better. It just depends. From what I have seen, the "safe" one's to run with an off the shelf Accessport map are the K&N Ram Air, the Cobb Ram Air & the SPT Ram Air.

You should be ok with a Stage 1 tune from Cobb considering you have the K&N. But use at your own risk. If something feels wrong, flash back to stock.

11:23am on Apr 14, 2010

Best Answer - chosen by Asker


Location: Tucson
2006 Subaru
Impreza WRX

what intake do you have?? ^^ agreed. i think you should be ok with a stage 1 tune map...try resetting your ecu aftwerward too

04:09pm on Apr 15, 2010


MySubie Mafia

Location: Huntsville, AL
2012 Nissan
Maxima SV

Xman called it right on the nose. But your stock air box setup is good for up to 400 HP as stated from a Suby tuner at TopSpeed.

07:13pm on Apr 15, 2010


Location: Portales, New Mexico
2008 Subaru
Impreza WRX Premium 5-Door

I know that they say to not use an aftermarket intake with the Cobb AP but I still do. I have an AEM CAI and I use the stage 2 map with turbo back exhaust. I have no problems with it at all. Also have a TurboXS hybrid BOV with the stock turbo... I think you would be fine.

11:34am on Apr 16, 2010


Registered Vendor

Location: NJ
2004 Subaru
Impreza WRX STI

I have personally used Perrin panel w/ intake elbow, K&N Typhoon, APS Short Ram, Cobb Short Ram, Perrin, Short Ram, and SPT Short Ram amongst my Subies: Cobb VF34 Mapped WRX, Cobb Stage 1 and Stage 2 FXT, Cobb Pro-Tuned STi. Never had any issues with any of these configurations.

06:44pm on Apr 16, 2010


Location: Glenolden, PA
2008 Subaru
Impreza WRX Premium 5-Door

The way the Cobb Tune is, you should not be using an aftermarket intake. I would recommend getting a Pro tune on a dyno or hit up Perrin or Rallitek for a Cobb tune they could sell you. Plus, the Cobb Stage 2 max boost is around 15. But the Perrin max boost is almost 19. The torque difference is night and day.

08:54pm on Apr 16, 2010

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