General description The blow off valve adapter is designed to provide the atmospheric blow off sound desired for your Turbo. This modification is a simple bolt-on solution that is compatible with the factory ECU and does not trigger a Check Engine Light (CEL). It is completely reversible and features an adjustable sound level, allowing you to customize the noise from loud to mute. Technical specifications Material: Aluminum Color: Black Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with Fiat Punto Evo 1.4 Multiair 123ps Package Contents: 1 x Blow Off Valve Adapter Installation It is recommended that all items be fitted by a professional, as installation instructions are not included.