COBB AccessPORT

**twister8008** · 08-13-2011 04:30 PM

Can someone explain this? How does it work? Do you have to wait for the break in period? Do you recommend it for a WRX? Thanks for your help!

2011 STI Review of COBB AccessPORT on Stage 1

**monchis** · 08-13-2011 04:44 PM

The Cobb AP is recommended for any Subaru WRX or STI, I have it on my WRX and it did make a world of difference just like that post said. I'd have to say it's definitely worth it, and most people here will likely agree.

**twister8008** · 08-13-2011 04:46 PM

thanks monchis! What is it exactly? Is it like a small computer that somehow changes the chip in the car? Do you always keep it plugged in?

**Insomniac** · 08-13-2011 04:57 PM

Is there a reason for the bad stock tune? Are they trying to get in under some motorsport rules for limitations on production models?

**monchis** · 08-13-2011 05:06 PM

I have no clue about why their stock tune is the way it is. However, the AP is a small computer that you plug in to your OBD II Port and download a different tune into the ECU. After you're done, you simply disconnect it and drive around like if your car was stock. If you want to monitor your car's vital signs, the AP would then get plugged in and kept there while you drive, otherwise I keep it in my glovebox.

**jd92677** · 08-13-2011 05:07 PM

Originally Posted by twister8008

thanks monchis! What is it exactly? Is it like a small computer that somehow changes the chip in the car? Do you always keep it plugged in?

It is a means to reflash you ECU. You don't have to keep it plugged in. There are cheaper ways to flash the ECU but the Accessport is the most user friendly. Subaru has to consider more than just performance when building a car, most notably the EPA. To conform to EPA regulations, the stock map runs leaner than optimal for performance