Ask our Experts: 1 (800) 680-7921

Free shipping on orders over $100!¹

APR B8 S4 ECU Development Progress

APR B8 S4 ECU Development Progress

all wheel power APR is pleased to present our newest accomplishments with the all new Audi S4. As the highly anticipated ECU Upgrade draws near, we would like to share our current development progress with you.

Please enjoy the following dyno graphs and check back at goapr.com for more updates as they become available.

Same day, Same Dyno, Same Car using APR’s Engineering Test Methods. We are sharing uncorrected all wheel data, SAE corrected all wheel data, estimated crank data and the delta between each dyno. Testing days were in the 90+F. The APR RSC Exhaust was used during the stock and APR Beta ECU dynos.

Uncorrected Wheel

Uncorrected Crank

Corrected Wheel

Corrected Crank

APR Tuned

Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: (334) 502-5180 Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

Copyright © 1997 - Present Day: APR LLC. All Right Reserved | Privacy Policy

Notice: Products that affect emissions and do not carry a California Air Resources Board Executive Order are not for sale in California, USA. While we try to keep everything current, APR LLC is not responsible for errors in pricing on this web site. All prices are in USD and are applicable to the United States of America only.
¹APR offers free ground shipping to the lower 48 states for purchases over $100.