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Fits Audi RS6 Avant 21-25
resulting in a fast and positive clutch engagement with no delay
Testing various setups we strike a balance by increasing stiffness to provide better handling without going overly stiff as to impact comfort
WHY THE SIMON 4
a non-enthusiast may give up these characteristics for a quieter ride
APR - Performance ECU Software - 3.0T EA837 V6 (Simos 8.5) audi sq5 b9.5 Fits Audi RS6 Avant 21-25APR's ECU Upgrades are the best dollar per horsepower modification one can make to improve engine performance. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR's optimization of the factory engine management system to take full advantage of the engine's capabilities, without needing any end user adjustment. The ECU Upgrades are available with
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