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Ignitions and Electrical› Computers, Chips, Modules and Programmers

RennTech

ECU Tune

Name: ECU Tune
Brand: RennTech
SKU: 50.211.E55.KIT

$2,980.00

SKU: 50.211.E55.KIT

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Professional / shop required

Overview

This second-generation unit offers a significant flow rate increase of 8.7 GPM at 11.6 PSI, compared to the 3.00 GPM rate of the OEM pump.

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The RennTech Intercooler Pump Upgrade Kit replaces the problematic OEM intercooler pump to provide substantially cooler charge air temperatures. By flowing over twice as much coolant as the factory unit, this kit enables a denser air/fuel mixture, helping the engine maintain peak performance levels across the entire operating range. This system is designed as a direct-fit component that mounts in the OEM location without requiring modifications, thanks to its lightweight and compact construction. The kit includes all necessary plumbing, electrical connectors, mounting hardware, and installation instructions for a complete installation. This upgrade is specifically engineered for the 2003-2006 Mercedes-Benz E55 AMG (W211) and related 55 AMG Kompressor models. It is built to resolve cooling limitations inherent in the factory system, ensuring sustained performance under demanding conditions.

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

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Specifications

Brand	RennTech
Part Number	50.211.E55.KIT
Category	Ignitions and Electrical

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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.

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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.

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