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ECUMaster USA EMU Black PnP Adapter for Lexus IS300 GS300 2002-2005 with Harness Kit
$854.05

If you're looking to step up your tuning game for your 2002-2005 Lexus IS300 or GS300, this plug-and-play adapter harness is a solid choice. It lets you install the EMU Black without the headache of reprogramming everything. What’s cool is that it keeps your original ECU intact, which means your automatic transmission (if you’ve got one) still works like a charm. Just a heads-up: the ETSC-i throttle body needs to stay connected to the stock ECU to keep that transmission in check. So, while the EMU Black is a powerful tool, it won’t control the ETSC-i TB. But don’t worry; this adapter is designed for both manual and automatic setups, so you’re covered either way.

What’s in the box? You’ll get:

  • Adapter harness
  • Intake Air Temp Sensor Kit
  • Bosch 4.9 Wideband O2 sensor

As for fitment, this adapter is specifically made for the Lexus IS300 and GS300 models from 2002 to 2005. So, if you're rocking one of those, you’re in luck!

Just a quick note: make sure to use the specific Lexus IS300 base map found in the Base Maps and Manuals drive. It’s crucial for getting everything dialed in just right.

In short, this adapter harness is a straightforward way to enhance your ride’s tuning capabilities while keeping the essentials intact. Perfect for anyone who wants to get a bit more out of their Lexus without diving into a full ECU swap.

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Vehicle
2002-2005
Lexus GS300
2002-2005
Lexus IS300
Ecumaster was founded in 2009 and is the fastest growing engine management manufacturer in the tuning and motorsport market. Our products are successfully used by teams competing in many different forms of motorsports, such as drifting, drag racing, rally and circuit racing. Our extensive dealer network covers all European countries as well as the US, Australia and Asia. Our goal is to design and manufacture the best equipment possible whilst maintaining excellent value, and ensuring that the products are versatile and user friendly. The level of quality and available tuning strategies, together with competitive pricing, make our products a very attractive package. In order to maintain high product quality and close control at all stages of production, development and manufacturing is done in-house (Poland). We make every possible effort to ensure that our products meet the highest quality standards, and also the high expectations of our customers.

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