Audi B9 S4/S5/SQ5 401 HP Stage 1 Performance Controller

Fuel Type Power Type Condition Horsepower (HP) Torque (TQ) 93 Octane Calculated Flywheel Power OEM Stock 357 HP 400 TQ Tuned 394 HP 451 TQ Measured Wheel Power OEM Stock 293 HP 328 TQ Tuned 323 HP 370 TQ 100 Octane Calculated Flywheel Power Tuned 401 HP 454 TQ Measured Wheel Power Tuned 329 HP 372 TQ   The CarBahn Performance Controller (CPC) is an easy-to-install electronic control unit (ECU) that significantly boosts the turbocharged cars' horsepower and torque. This plug-and-play unit offers selectable maps, which can be accessed through a smartphone application via Bluetooth.   To access this app, you can download them from either the Apple App Store or the Google Play Store. Apple App Store: https://apps.apple.com/us/app/tuning-pro/id1508035080 Google Play Store: https://play.google.com/store/apps/details?id=com.sve.gmbh.tuningpro&hl=en_US&gl=US   These maps are specifically designed to optimize performance based on different octane fuel levels. You have the flexibility to choose between 91, 93, and 100 octane options.    Additionally, CarBahn offers an optional powertrain warranty for all their products, including the CPC.    If you wish to switch from the CarBahn Performance Controller to software in the future, there is an upgrade fee of $250. However, if you have purchased a warranty, it can be transferred to the software upgrade at no additional charge!!    Emissions Legality:  Let us address the topic of removing the catalyst, commonly achieved through the utilization of downpipes. Our rigorous testing regimen involved conducting consecutive dyno runs with and without the catalyst, and the observed power gain was significantly smaller than commonly touted, typically around 2%. Nevertheless, it is important to acknowledge our shared responsibility towards environmental preservation, as clean air is vital to our well-being. Furthermore, obtaining the necessary emissions certifications without a catalyst is a daunting task and, from a legal standpoint, it is considered an infringement.    About Steve Dinan:  With an illustrious career spanning over four decades, Steve Dinan stands as an authority in streetcar turbo tuning. Under his leadership, our team has triumphed in three prototype racing championships and secured two overall victories at the esteemed 24 Hours of Daytona in collaboration with Chip Ganassi Racing. Steve Dinan's unparalleled expertise solidifies our claim as the leading force in tuning high-performance engines.    Warranty Information:  Click here for all queries related to CarBahn Warranty.