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Haltech

Elite 2500 ECU Kit with Parallel Adaptor Harness

$2,747.65 $2,417.00 Save $330.65

SKU: HT-151341

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In Stock
Ships by Jul 31
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INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Haltech Elite 2500 ECU kit (HT-151341) is specifically designed for a parallel (piggy-back) installation on 2002-2005 Lexus IS300 models equipped with the 2JZ GE VVTi engine and either automatic or manual transmissions. This kit includes the powerful Elite 2500 ECU, known for its robust, environmentally sealed waterproof case and advanced features. The Elite 2500 ECU offers extensive engine calibration capabilities, including drive-by-wire throttle control, intake and exhaust cam control, short and long-term map learning, and dual-channel knock control. It supports a wide range of engine configurations, from 1 to 12 cylinders and 2 to 4 rotors, and can handle naturally aspirated or forced induction setups. The included Elite Software Programmer (ESP) provides an intuitive interface for tuning. The kit comes complete with the Elite 2500 ECU, a parallel adaptor harness, a USB programming cable, and a software CD. This system allows for precise control over fuel and ignition timing to maximize engine performance under all conditions. Advanced features include low impedance injector control, flex fuel capability, closed-loop O2 control, dual-channel knock control, and variable cam control for up to four camshafts. It also supports on-board and laptop data logging, dual CAN bus communication for Haltech dashes and expansion devices, and supports OEM CAN & OBDII functions. Additionally, it offers race-specific functions such as anti-lag, launch control, traction control, and advanced boost control. It is important to note that Haltech products are designed and sold for sanctioned off-road/competition non-emissions controlled vehicles only and may never be used on a public road or in a manner that violates emissions regulations.

MIA's Description

The Haltech HT-151341 is an ECU kit designed for the Lexus IS300 with the 2JZ GE VVTi engine from 2002-2005. This kit features the Elite 2500 ECU and includes a parallel adaptor harness. It supports parallel (piggy-back) installation in conjunction with the factory ECU for both automatic and manual transmissions.

Fitment

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Specifications

BrandHaltech
Part NumberHT-151341
CategoryIgnitions and Electrical

Buy with Confidence

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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