Hello guys just installed a « sport » air filter. No difference in sound and I didn't test the power yet. It does have a stage 1. I heard it needs a

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Hello guys just installed a « sport » air filter. No difference in sound and I didn't test the power yet. It does have a stage 1. I heard it needs a

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Hello guys just installed a « sport » air filter. No difference in sound and I didn't test the power yet. It does have a stage 1. I heard it needs a