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  1. Volkswagen Passat B5 Discussion
    hey guys i just put a 2.5" exhaust on my car along with a 2.5" test pipe and now im running 14psi. why would i be running more psi when i was only running about 11.5 to 12? and when it hits about 14 the car starts to hit its limp mod and doesnt want me to run that. when i first drive the car i...