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RennTech ECU Upgrade Mercedes-Benz G500 98-08

$1,295.00 Sale:$1,256.15


Model #ECU:54.463.G500

In Stock

This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.

Purchasing this product requires you to sign our Vehicle Compliance Waiver here.

With custom software that is at the cutting edge of tuning technology, RENNtech has inspired some of the most advanced software upgrades on the market today. RENNtech customers experience improved throttle response, more aggressive transmission shift patterns, increased speeds, and (of course) more power. Designed to optimize every aspect of a vehicles performance, increasing low-end torque for better off-the-line performance and enhancing fuel economy in some applications.


  • 28 HP gain
  • 19 LB-FT gain
  • Gains across entire power band


  • Mercedes-Benz, G500, W463, 1998-2008
RENNTECHs philosophy has always been to produce products without compromise, and that dedication continues to this day. True to Mercedes-Benz quality, RENNTECH cars are designed to be fast yet refined. Regardless of specification, they run faultlessly, idle smoothly, and have reliability and ease of maintenance comparable to the stock Mercedes-Benz. This attention to detail has made RENNTECH the choice of some of the most discriminating enthusiasts in the world.

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