Mercedes A/CL/GLA 45 AMG M133 360BHP blow off valve, can be fitted to any M133 Engine up-to 2015. This engine as supplied from AMG factory has a port ready made for the valve but it is blanked off. Whilst this is rated for the stock power band that the engine produces, but as you turn up the boost during remapping drive-ability of the car will be effected and the the turbo will start to stall after hard acceleration, which will ultimately reduce the life of the turbo charger.
This valve is supplied with the fitting hardware required and will bolts straight up to the factory turbo. The valve is made from aluminum for longevity, and is fully rebuild-able as-well as serviceable with a range of different springs to suit your level of power.