K KILLER Member Aug 4, 2010 #1 I have a BMW 535i and I want to put a cool air intake and a new exhaust system for added horse power, will this reduce fuel economy?
I have a BMW 535i and I want to put a cool air intake and a new exhaust system for added horse power, will this reduce fuel economy?
J joemoney New member Aug 4, 2010 #2 no it will make it better. better airflow to an engine makes it perform better. its like allowing a marathon runner to breathe easier, they will be able to go further longer.
no it will make it better. better airflow to an engine makes it perform better. its like allowing a marathon runner to breathe easier, they will be able to go further longer.