Description
The 4.0L TFSI engine is a potent and capable powerplant in addition to being paired to the famous AWD systems Audi/Porsche are known for. Through rigorous testing on both the street and dyno, the Weistec 4.0 TFSI ECU Upgrade for the 4.0 Liter Twin Turbo V8 engines reliably extracts massive gains in the mid range of the powerband as well as substantial gains in the top end making it a top performer in all driving situations.
Toggle between W.1 and W.2 above to see various levels of power gains achievabl
POWER GAIN: +121hp
TORQUE GAIN: +172 TQ
ENGINE FAMILY: 4.0L TFSI
WEISTEC HORSEPOWER: 589
WEISTEC TORQUE: 674
STREET LEGAL IN ALL THE US STATES: NO
STOCK HORSEPOWER: 468
STOCK TORQUE: 502
Features:
W.1 Stock Fitted Vehicle
Increased Boost
Optimized Fueling
Optimized Ignition Timing
Removed Speed Limiter
Optional Burble
Optional E85 Tune (Stock Turbos Only)
Optional Cypher Handheld
Fitment:
Audi A6 Twin Turbo 4L V8 TFSI Base C7 2013-2018
Audi A6 Twin Turbo 4L V8 TFSI Base C8 2019-2020
Audi S7 Twin Turbo 4L V8 TFSI Base C7 2013-2018
Audi A8 Twin Turbo 4L V8 TFSI Base D4 2013-2018
Audi A8L Twin Turbo 4L V8 TFSI Base D4 2013-2018
Audi A8 Twin Turbo 4L V8 TFSI Base D5 2019-2020
Audi A8L Twin Turbo 4L V8 TFSI Base D5 2019-2020
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