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------ Audi B5 S4 and RS4 ECU Tuning Software by Unitronic ------

Looking for the ULTIMATE ECU Performance Upgrade for your B5 Audi S4 or RS4? You've stumbled into the right thread! This will be the "go-to" thread for all Unitronic Engine ECU products for the B5 Audi S4 and RS4, and if anyone has questions, please direct them here!

CLICK BELOW for a FULL software listing of YOUR car!

Audi S4 2000-2002 2.7T ECU Tuning Software

Audi RS4 2000-2001 2.7T ECU Tuning Software


Now for a little information about the product;

(2000-2002 Audi S4 2.7T figures listed below as an EXAMPLE)


Unitronic Stage 1 Engine Software Specs:

-Optimized for 91 Octane
-Engineered with Strict Industry Standards
-Extensively Tested Under Various Driving Conditions
-Volkswagen Factory Safety Limiters Retained
-Greatest Power and Torque Gains in the Industry, Guaranteed!
-Optimized Responsiveness and Drivability
-Optimized Smoothness and Driving Comfort
-Power Delivery Perfectly Optimized Throughout the Power Band
-Improved Fuel Efficiency
-Speed Governor Removed
-RPM Limiter Increased to 7000

Unitronic Stage 1+ Engine Software Specs:

-Optimized for 93 Octane
-Upgraded DV recommended

Unitronic Stage 2 Engine Software Specs:

-Optimized for 93 Octane
-Turboback exhaust required
-Cold air intake required
-Upgraded intercooler recommended
-Upgraded DV recommended

Unitronic Stage 2+ Engine Software Specs:

-Optimized for 93 Octane
-16psi K04 Turbo
-OEM Fuel Injectors
-OEM Maf
-Turbo Back Exhaust System
-Cold Air Intake / Short Ram

CLICK HERE for your Audi B5 S4 / RS4 ECU Tuning Software!

It's important to note that we also offer the industries LEADING Guarantee. All Unitronic performance software upgrades come with an unconditional 30-day money back guarantee, to ensure that your power and performance expectations are fully met. Our goal is to enhance your driving pleasure, and our risk free guarantee brings you peace of mind. If for any reason you are not 100% delighted with your Unitronic software, you may return it for a full refund (installation fees may not be covered).

At the end of the day, Unitronic Performance Products are engineered to deliver instantaneous asphalt-shredding performance while maximizing your daily driving comfort and pleasure. We guarantee to DELIVER THE POWER, resulting in a night and day difference that you will immediately feel and fall in love with; all done in direct accordance with the specifications established by the manufacturer, to ensure complete reliability.

If you have any questions or concerns, please do not hesitate to contact us via email ([email protected]), phone (1-866-341-2447), or PM here on the forum!


Team Unitronic

113 Posts
Discussion Starter #11
Unitronic Software nets another 1st place finish for Yves Bedard, propelling him to top as the 2012 Championship Title Winner in SCP!

Reliable, POWERFUL software for your

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