Pay in 4 interest-free payments of $61.74 Learn more
Ships within 48 hours · Estimated delivery Oct 31 - Nov 5
Our software delivers a smooth
Forward Hole - 25% increase over stock GTI 24mm bar
95 APR Stage 1+ APR Stage 1+ ECU Upgrade $399
Delivers up to 530-627 HP with 506-533 FT-LBS of torque (APR Stage 3)
Optimized thermal management with various engine safety protection routines added
APR - Performance ECU Software - 4.2L EA824 V8 (RS4) turbo Our software delivers a smoothAPR's ECU Upgrades are the best dollar per horsepower modification one can make to improve engine performance. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR's optimization of the factory engine management system to take full advantage of the engine's capabilities, without needing any end user adjustment. The ECU Upgrades are available with
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![[PROMO] 3813 Colour:Shiny Black](https://cdn.shopify.com/s/files/1/0621/1194/0805/files/IMG_0551.heic?v=1727699124)
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