The Weistec VTA (Vent to Atmosphere) Adapters for the V8 Vantage and DB11 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 with out being excessively loud or high pitched. ?The 4.0L V8 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 VTA Adapters, there will be no check engine light as the factory valves are still used, and no tuning or ECU calibration is required.
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