Turbosmart TS-0203-1262 Kompact Shortie Plumb Back Blow Off Valve Mercedes Benz A A45 AMG W176 CLA45 AMG C117 X117 GLA45 AMG X156

Despite the AMG 4’s high boost levels, these vehicles do not have a bypass valve installed from the factory. This is most likely because the plastic valves typically found in OEM setups would not be able to withstand the A45’s 26PSI of boost pressure without premature failure. As a result, the AMG 45 models suffer from a significant amount of compressor surge. Compressor surge, combined with the A45’s high boost pressures, equates to a recipe for disaster for the bearings inside the turbocharger. Introducing Turbosmart’s Kompact Shortie blow-off valve for the A45, CLA45 and GLA45 AMG. This high-performance billet aluminium valve bolts directly to the compressor cover of the AMG’s turbocharger. With Dual Port and Plumb Back variants available, owners can choose between the classic blow-off valve sound offered by the Dual Port variant’s 50/50 split between recirculating and vent-to-atmosphere operation, or the quieter, OEM-like operation of the Plumb Back variant. Both variants dramatically reduce the compressor surge experienced by the A45 in its standard form. The Shortie’s billet construction and high-performance piston design, which removes the need for an o-ring to seal the blow-off valve body against the piston due to extremely fine machining tolerances, means the valve has no problems withstanding the boost pressures produced by the AMG’s turbo, ensuring no leaks and extreme durability, even if you decide to turn the boost pressure up! The VR03 Kompact Shortie kit for the A45, CLA45 and GLA45 AMG includes a boost reference adapter which allows the blow-off valve to respond to engine vacuum instantaneously, providing a higher level of control compared to electronically actuated valves. This is made possible by allowing the valve to access a manifold pressure reference on the AMG’s closed system, all without destructive methods, such as tapping into the intake manifold. The boost reference adapter offers two pressure ports, allowing a second manifold pressure actuated accessory, such as a boost gauge, to be used.