APR Presents the Audi A8/A8L 4.0 TFSI ECU Upgrade!

By: APR | 01/03/2014 < Back to Blog Home
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We’re excited to release our Stage I ECU Upgrade for the Audi A8 and A8L 4.0 TFSI. This completes our Stage I ECU Upgrade offering for all Audi 4.0 TFSI engine variants as found in the S6/S7, A8/A8L, S8 and RS6/RS7.


The APR Stage I ECU Upgrade gives you higher peak numbers of 545 HP / 629 FT-LBS on 93 (R+M)/2 octane and up to 578 HP / 679 FT-LBS on 100 (R+M)/2 octane race fuel. As much as +127 HP and +175 FT-LBS of torque are available through the power band! APR’s ECU Upgrade is the best power per dollar modification for the new 4.0 TFSI V8 and gives it just the extra edge these cars lack from the factory without pushing the limits. With factory-like smoothness and drivability, APR’s ECU upgrade will fill the void in an otherwise excellent car. Read more!

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