Ignitions and Electrical Computers, Chips, Modules and Programmers

KTuner

End User Board System ECU Package

$449.00

SKU: KTUNER-ACCORD-0305

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Overview

The KTuner ECU package is a complete tuning solution for the 2003-2005 Accord 4-cylinder chassis. This package includes a pre-installed and tested KTuner End User Board System within the ECU. It supports both manual and automatic transmissions, and requires a Windows-based laptop for operation. The package comes with a USB cable and the necessary KTuner software for tuning.
Show original supplier description
The KTuner complete ECU package is designed for the 2003-2005 Accord 4-cylinder chassis, offering a comprehensive solution for performance tuning. This package includes a pre-configured KTuner 03-05 Accord ECU with the KTuner End User Board System fully installed and tested. It is compatible with both manual and automatic transmissions, allowing for flexible application. To utilize this system, you will need a laptop computer running Windows XP or newer, and an internet connection for initial registration and account setup. The package includes a USB cable for connecting the ECU to your laptop and the KTuner software, which can be downloaded from the KTuner website. This ECU is suitable for the K24a4 engine found in the 03-05 Accord, as well as other K series engines such as the K24a2 and JDM K24a, provided they use a cable-operated throttle body. The KTuner software offers a wide range of adjustable features, including real-time logging, injector sizing, ignition/fuel tuning, VTC tuning, knock tuning, adjustable rev limiters, 2-step launch control, custom MAP sensor support, expanded boost tables, VTEC control, and the ability to disable various sensors and immobilizers. It is critical to note that this tuning system is intended for off-road motorsport and competition racing use only and is not legal for use on any pollution-controlled motor vehicle. Additionally, for 03-04 Accords, an ECU from a 2005 Accord model or a factory replacement ECU must be used. While automatic ECUs can function in manual vehicles, 3.0L V6 models are not compatible, and the ECU is exclusively for 4-cylinder applications. If using an ECU other than factory, the immobilizer light may flash, requiring it to be disabled in the software or synced at a Honda/Acura dealer.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKTuner
Part NumberKTUNER-ACCORD-0305
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

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.

View Full Return Policy

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.

View Full Shipping Policy