aFe Direct Fit Catalytic Converter 01-06 BMW M3 (E46) L6 3.2L (S54) - 47-46304 fits_2013-15`Acura`ILX Down pipe is 100 percent

Down pipe is 100 percent TIG welded and uses a stepped design that increases exhaust velocity and eliminates low pressure drops which helps to scavange the exhaust for increased intake charge and more power

while reducing turbulences that are found in traditional form collectors

132% cfm Flow Gain

performance-tuned sound

aFe Direct Fit Catalytic Converter 01-06 BMW M3 (E46) L6 3.2L (S54) - 47-46304 fits_2013-15`Acura`ILX Down pipe is 100 percentAdvanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in April, 1999, aFe was created to address an obvious need in the automotive aftermarket industry: a lack of choice for a high performance aftermarket air filter. We are a team of engineers, machinists, production and sales people who believe in the product we design. We each have years of experience in our