Valve Simulators: When valves are eliminated, the ECU stores what is known as a ‘soft code’ in the system, which may not appear on the dash. While this code is not harmful, who wants it? Enter the AWE Electronic Valve Simulators. These simple devices plug right into the factory harness in place of the exhaust valves and prevent any code from ever being stored in the ECU due to the removal of the exhaust valves. Plug them in. Start it up. Drive away. That simple. Comes as a set of two.This Part Fits: Year Make Model Submodel 2020 Audi S3 Premium 2015-2020 Audi S3 Premium Plus 2015-2019 Audi S3 Prestige 2013-2015 Audi S6 Base 2016-2018 Audi S6 Premium Plus 2016-2018 Audi S6 Prestige 2013-2016 Audi S7 Base 2017-2018 Audi S7 Premium Plus 2017-2018 Audi S7 Prestige 2014-2017 Audi SQ5 Premium Plus 2014-2017 Audi SQ5 Prestige 2015-2018 BMW M3 Base 2015-2020 BMW M4 Base 2019-2020 BMW M4 CS 2016 BMW M4 GTS 2017-2023 Mercedes-Benz C43 AMG 4Matic 2016-2018 Mercedes-Benz C63 AMG Base 2015-2018 Mercedes-Benz C63 AMG S Base 2017 Porsche Macan GTS 2015-2017 Porsche Macan S 2015-2017 Porsche Macan Turbo 2015-2019,2022-2024 Volkswagen Golf R Base
