/ Hi everyone currently i am running on an stock evo x engine with Fp red 20g on HKS internal actuator on Full race exhaust manifold and 3 inch straight tru and JUN 272 cam, was wondering running an External wastegate would hold my boost better and give me higher HP ? and wish to know if install a wastegate should i use a downpipe with a pump to atmosphere waste gate or a downpipe with a pump back to the exhaust system ?