Ignitions and Electrical› Computers, Chips, Modules and Programmers

RENNtech

ECU Hand Held Tuner (HHT) for W211 E55 AMG Kompressor

$1,195.00

SKU: 54.211.E55K

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The RENNtech ECU Hand Held Tuner (HHT) is a performance tuning module designed for the W211 E55 AMG Kompressor. It allows for unlimited switching between tuned and stock ECU programming without requiring ECU removal. The module connects directly to the OBD2 port and delivers chosen files to the ECU in minutes.

This tuning software modifies ignition timing, throttle mapping, air/fuel ratios, the engine's rev limiter, and boost mapping for turbocharged vehicles. RENNtech's proprietary upgrade is the result of extensive research, development, and testing, aiming to provide significant performance gains while maintaining daily driver reliability.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRENNtech
Part Number54.211.E55K
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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