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it has 4 inch intake port and there is no way you can fit a filter on it without cutting stuff out , I did bought a filter and a turbo guard I took the filter part from the housing and put it over the turbo guard but that killed the performance by a lot , and I can see that filter got black in 1 week driving the car which means it sucks a lot of dirt So filter is a must , I just dont know how to run at this point because I need someone to custom make the pipe to go from turbo to the other side of the engine 4 inch to 3 inch with a sharp turn
I have the exact same problem with a cx manifold and a 4 inch inlet. I am having a really hard time making any kind of filter work.
 

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