Assalamualaikum..hehee. Hye brothers..
What about if BOV(kechhiingg../kechiisss../kerhhooww..) remove by owner? No sound created by BOV rite..But can detect via BLOW-IN when shift the gear and Turbine running/energise while push the pedal..Close range can detect for small turbo engine but for big turbo engine like GSR..peerrghh..to create such a crazy sound juz install ur waste gate pipe. :shades_smile: