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Ignitions and Electrical› Computers, Chips, Modules and Programmers

APR

Stage 1 ECU Software Tune

$999.95 $871.98 Save $127.97

SKU: ECU-29T-EA839-B9

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Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The APR ECU Stage 1 Software Tune is an engine upgrade designed to dramatically increase horsepower and torque. This software optimization allows the engine to take full advantage of its capabilities without requiring end-user adjustment. The upgrade is installed directly to the vehicle's factory ECU through the OBD-II port for a straightforward installation.
Show original supplier description
The APR ECU Stage 1 Software Tune is a performance modification that significantly boosts horsepower and torque, providing a more exhilarating driving experience. This upgrade optimizes the factory engine management system to unlock the engine's full potential without the need for any user adjustments. This ECU tune offers multiple performance levels based on installed hardware and supports various fuel grades, including 91, 93, 100, and 104 AKI, as well as E60-E85 in North America. Depending on the fuel used, Stage 1 tuning can yield gains of 75-129 HP and 89-168 FT-LBS of torque over stock. The software also introduces enhancements such as a new launch control strategy for improved starts with better driveline protection, linear throttle pedal mapping, an increased redline, and the removal of the speed limiter. Additionally, it offers features like Auto Start/Stop inversion and optimized exhaust flap actuation for enhanced power delivery and drivability. APR offers an optional APR Plus warranty, which provides a limited powertrain warranty matching the factory term. For those using E85, it's important to note that this software is not a full flex-fuel program and is designed exclusively for E60-E85 blends; using traditional pump fuels in this mode may cause engine damage. APR recommends using an E85 content sensor to ensure proper fuel content levels. The software can be purchased and installed at home using the APR Ultralink, or professionally installed at an authorized Eurocode facility.

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

BrandAPR
Part NumberECU-29T-EA839-B9
CategoryIgnitions and Electrical

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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

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