Sale

ECUMaster

EMU Black Plug-and-Play Adapter Harness

$899.00 $849.00 Save $50.00

SKU: WHPIS3001

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The ECUMaster WHPIS3001 is a plug-and-play adapter harness engineered to facilitate the installation of the ECUMaster EMU Black standalone engine management system in specific Lexus vehicles. This harness is designed to work seamlessly with the 2001 Lexus IS300 and the 1998-2001 Lexus GS300 models. A key feature of this adapter harness is its parallel design, which allows the original factory ECU to remain in place. This ensures that essential functions, such as the automatic transmission control (if equipped), are still managed by the stock ECU. Consequently, the ETSC-i throttle body must remain connected to the original ECU, meaning the EMU Black will not directly control it. The adapter is compatible with both manual and automatic transmission vehicles, as well as the dash cluster, HVAC system, and throttle body. Included with the WHPIS3001 harness kit are the adapter harness itself, an Intake Air Temperature (IAT) Sensor Kit, and a Bosch 4.9 Wideband O2 sensor. Fitment is confirmed for a range of Lexus vehicles including the 1998-2001 GS300 Base models and the 2001 Lexus IS300 Base model. It is also compatible with JZS161 Aristo, JSX110, and JZS171 models. Always confirm fitment with your specific vehicle details before purchase to minimize the risk of ordering an incorrect product.

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

BrandECUMaster
Part NumberWHPIS3001
CategoryIgnitions and Electrical
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy