How to install VTA adapters on a C63 GLC63
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The Weistec M177 VTA (Vent to Atmosphere) Adapters are designed and manufactured as a complete and simple bolt-on solution for attaining the "blow-off" sound that many people are fond of on turbocharged vehicles without being excessively loud or high-pitched. The M177 engine comes equipped with twin electronically actuated bypass valves molded into the intercoolers that recirculate back into the airboxes for near-silent operation. With the M177 VTA Adapters, there will be no check engine light as the factory valves are still used, and no tuning or ECU calibration is required.
