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Royal Tuned Pre-Tuned ECU Lexus GS300 2JZ-GE 02–05 Manual Converted

Original price $400.00 - Original price $400.00
Original price
$400.00
$400.00 - $400.00
Current price $400.00

Complete your automatic-to-manual transmission swap with the Royal Tuned Pre-Tuned ECU for the 2002–2005 Lexus GS300. Professionally calibrated and ready to install, this ECU is converted from a factory automatic ECU to support manual transmission applications while delivering improved throttle response, enhanced drivability, and increased engine performance.

Each ECU includes a performance tune, immobilizer removal, and an increased rev limiter, eliminating the need for factory key programming or additional ECU modifications. Simply install the ECU and get back on the road with a reliable plug-and-play solution.

Performance Calibration: Professionally tuned to improve throttle response, drivability, and overall engine performance.

Manual Transmission Conversion: Converted from a factory automatic ECU for manual transmission applications.

Immobilizer Removal: Eliminates factory immobilizer restrictions, allowing operation without matching factory key programming.

Raised Rev Limiter: Factory rev limiter increased from 6,700 RPM to 7,000 RPM.

Plug-and-Play Installation: Ready to install with no additional programming or tuning required.

Ready to Ship: Pre-programmed ECU helps reduce downtime and simplifies your manual swap.

Specifications:

  • Manufacturer: Royal Tuned
  • Engine: Toyota 2JZ-GE VVT-i
  • Vehicle: Lexus GS300
  • Model Years: 2002–2005
  • Transmission: Manual Conversion
  • ECU Type: Converted Automatic ECU
  • Rev Limiter: 7,000 RPM
  • Immobilizer: Removed
  • Calibration: Performance Tune Included

What's Included:

  • (1) Royal Tuned Pre-Tuned ECU

Vehicle Fitment:

  • Lexus GS300 Base (2002–2005) – 2JZ-GE VVT-i Manual Conversion

Important Notes:

  • Not compatible with 1998-2001 Lexus GS300 models.
  • Designed for vehicles converted from automatic to manual transmission.
  • Immobilizer removal is included.
  • This ECU is intended for use with compatible manual transmission conversion components.
  • Intended for off-road, racing, or competition use where applicable. It is the purchaser's responsibility to ensure compliance with all applicable federal, state, and local laws.
  • Professional installation is recommended.

California Emissions Disclaimer (CARB Notice)

This product is intended solely for off-road, race/competition vehicles that are not registered for highway use. It is not legal for sale or use in California or in states that have adopted California emissions laws on any pollution-controlled motor vehicle driven on public streets, roads, or highways.

Installation or use of this product on a pollution-controlled vehicle may violate federal (Clean Air Act) and state laws, and can result in substantial fines and penalties imposed by the California Air Resources Board (CARB), U.S. Environmental Protection Agency (EPA), or other regulatory agencies.

By purchasing and installing this product, the end-user assumes all responsibility for compliance with local, state, and federal emissions regulations. The seller and manufacturer disclaim all liability for improper use of this product.

Why Choose Royal Tuned:

Royal Tuned specializes in plug-and-play ECU solutions for Toyota and Lexus platforms. Every ECU is professionally calibrated to deliver reliable performance, improved drivability, and simplified installation. Whether you're completing a manual swap or replacing a factory ECU, Royal Tuned provides a proven, ready-to-install solution.

The Royal Tuned Pre-Tuned ECU is the easiest way to complete your 2002–2005 Lexus GS300 manual conversion with improved performance, immobilizer removal, and a professionally calibrated tune.

About Us

We are passionate Lexus and Toyota enthusiasts dedicated to providing the highest quality aftermarket parts to enhance your ride. Our goal is to help you find the perfect performance upgrade, whether you're building your dream car or just adding that next improvement. We take pride in offering products that we trust for our own vehicles.

Shipping

Shipping times vary based on item availability and specific lead times. You can expect an email with an estimated shipping date within 1-3 days of placing your order. Many in-stock parts ship within 2-5 business days, while certain built-to-order items may take up to 7-10 business days. For back-ordered items, availability may vary, but we will email you with any ETA changes.

Once your items are ready to ship, we will send tracking information via email so you can easily follow your package from our warehouse to your door. Please note, some parts may be shipped separately and could arrive at different times. Shipping costs apply to the lower 48 states, unless stated otherwise, and international orders may be subject to additional customs or duties fees.

What to Expect Upon Delivery

Upon receiving your order, please inspect the items immediately for any damage or missing parts. Verify all items against the packing slip or instructions before starting installation. We cannot be held responsible for costs incurred from delays due to missing items.

If any items are damaged or missing, please get in touch with us within 14 days of receipt so we can assist with a replacement. Claims made after this period will not be honored.

Cancellation Policy

If you need to cancel or modify your order, please contact us as soon as possible. We strive to ship your order quickly, and once processing begins, cancellations may be subject to a restocking fee. Orders canceled within 24 hours of purchase may not incur a fee, but after that time, restocking fees (typically 20%) will apply depending on the items and the stage of fulfillment.

Return Policy

Customer satisfaction is our priority, and we are happy to assist with returns. However, due to the complexity of sourcing and delivering our products, returns are subject to a restocking fee (usually 20%) based on the item and manufacturer.

Before returning any items, please get in touch with us to receive a return authorization. All return requests must be made within 30 days of receiving your merchandise. Once approved, items must be returned within 14 days in their original condition. Improper packaging of returned items may result in customer responsibility for damages.

Customers are responsible for return shipping costs, unless the item is defective or we shipped the wrong item. A trackable shipping method is strongly recommended.

Warranty

We honor all manufacturer warranties and are here to support you in getting the quality products you deserve. However, please note that warranty claims are available to the original purchaser only. In certain situations, manufacturers may handle warranty claims directly, and we are unable to cover costs not specified in the manufacturer's warranty (e.g., shipping, labor). If you have any questions, feel free to reach out to us.

Emissions Notes

All parts and services offered by LunaticsCo are for competition vehicles only. Use on state and federal highways may be a violation of the EPA Clean Air Act. The Clean Air Act can be found at http://www.epa.gov/air/caa/. This document details what are considered violations of the CAA and the corresponding penalties for failure to comply. It should be read in full before purchasing or installing this competition-use-only product. Ensuring that all emissions, noise/sound, and speed/use-related laws are followed is the responsibility of the buyer(s). Installation and use of this product indicate that this disclaimer has been read, acknowledged, and fully understood by both the buyer(s) and installer(s). The buyer(s) assume all associated risks of purchase.

Federal and several state laws prohibit the removal, modification, or rendering inoperative of any part that affects emissions or safety on motor vehicles used on public streets or highways. LunaticsCo assumes no liability for any violations arising out of any federal, state, or provincial emissions or safety requirements on motor vehicles resulting from the customer’s modifications and/or use of LunaticsCo products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.