Replace your slow, stock, electronically controlled compressor recirculation valve (CRV or BOV) with the fast, mechanically actuated, Alta Compressor Recirculation Valve. Getting rid of your stock CRV can do many good things for your Mini such as eliminate turbo damaging compressor surge and eliminate DTC's/CEL's for faulty or sticky CRV's as well as improve drivability and power! Cars with an ECU tune that increases boost levels will like this part as you never will have to worry about it leaking under boost. The design of the part is such that the boost pressure pushing it closed is greater than the pressure trying to open the valve under boost. The stock CRV is actuated by the ECU, which sounds fast, it is not. There are delays in the ECU when determining to open the valve. This effects how quickly it blows off, which can lead to compressor surge, which leads to turbo damage or even failure. The Alta CRV uses the tried and true method of using intake manifold vacuum and pressure, along with turbo pressure to open the valve. This means the moment you start to lift your foot off the gas, the Alta CRV will start to release boost pressure keeping your turbo safe! A common problem with the stock CRV diaphragm is ripping in higher boost levels and normal wear and tear. The stock part is made of silicone and rubber with no reinforcement to it. So when it starts to fail, it fails quickly. The Alta CRV has a high quality rubber diaphragm with reinforcement to keep it lasting for the life of your car.
Note:
A boost port adapter is highly recommended for installation of this CRV.
Model No:AMP-TAC-105
Dimension:6x6x2
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