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APR Presents the Audi S8 4.0 TFSI ECU Upgrade

October 10th, 2013

APR is pleased to present the ultimate ECU Upgrade for the Audi S8 4.0 TFSI V8!

The APR Stage I ECU Upgrade gives you higher peak numbers of 647 HP/671 FT-LBS on 93 (R+M)/2 octane and up to 685 HP/679 FT-LBS on 100 (R+M)/2 octane race fuel. As much as +130 HP and +142 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 …

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