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COBB Tuning

Accessport V3 ECU Upgrade

$735.00 $661.50 Save $73.50

SKU: AP-SUB-001

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The COBB Tuning Accessport V3 is an ECU tuning solution for the 2002-2005 Subaru WRX EJ20 platform. It offers direct OBD-II flashing with OTS maps for 91 and 93 octane fuel, developed specifically for the EJ20 engine. The device features a live gauge display for up to six parameters, high-speed data logging, and the ability to read and clear OBD-II diagnostic trouble codes.
Show original supplier description
The COBB Tuning Accessport V3 (AP3-SUB-001) is a versatile ECU upgrade solution designed for Subaru vehicles, combining ECU flashing capabilities with an integrated gauge package. This device features a large, high-resolution, full-color screen that can display up to six real-time monitoring parameters, offering a clear view of your vehicle's performance. The Accessport V3 is fully customizable, allowing users to personalize its appearance with interchangeable faceplates and configure multi-gauge displays for various scenarios like street, race, or dyno use. It boasts increased processing power, memory, and storage, enabling faster map flashing and ample space for saving maps and data logs. Installation is straightforward with included components and intuitive on-screen instructions. The device also includes features for reading and clearing trouble codes, storing up to 100 maps, and performing performance measurements such as 0-60 mph times. This Accessport is specifically compatible with USDM (United States Domestic Market) vehicles. It's important to verify exact vehicle compatibility. Note that for 2002-2005 WRX models where the ECU has been replaced, support is not available for certain Subaru ECU part numbers, including specific MT/AT variants for the 2002, 2003, 2004, and 2005 model years. The Accessport is 50-state legal and has CARB Executive Order numbers D-660-16 and D-660-43.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandCOBB Tuning
Part NumberAP-SUB-001
CategoryIgnitions and Electrical

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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