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Ignitions and Electrical› Computers, Chips, Modules and Programmers

Integrated Engineering

Stage 1 ECU Tune

Name: Stage 1 ECU Tune
Brand: Integrated Engineering
SKU: IESOVZ21

$1,078.99 $1,046.62 Save $32.37

SKU: IESOVZ21

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Overview

The Integrated Engineering (IE) IESOVZ21 is a performance ECU tune designed for the Audi B9/B9.5 2.9T RS4 and RS5. This tune offers various stages and fuel options, including support for E85 and flex-fuel with TrueFlex Tuning. It provides features such as advanced anti-lag launch control, instant launch-RPM setting, and auto-start/stop default to off.

Show original supplier description

The Integrated Engineering IESOVZ21 is a Stage 1 ECU tune engineered for Audi's B9/B9.5 RS4 and RS5 models from 2018-2023. This calibration is a flash-only upgrade that offers a significant increase in performance by providing a broader powerband and a higher rev limit. While no hardware upgrades are required for this Stage 1 tune, the manufacturer notes that upgrading the intake, turbo inlet, and intercooler can further enhance airflow and lower intake air temperatures for even greater performance gains. This tune is specifically designed for the Audi RS4 B9/B9.5 and RS5 B9/B9.5 models produced between 2018 and 2023, featuring the 2.9 TFSI Quattro engine. The ECU tune is a simple flash process that delivers instant excitement with precise power delivery, avoiding any abrupt spikes or hesitation.

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	Integrated Engineering
Part Number	IESOVZ21
Category	Ignitions and Electrical

Videos

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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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