06-28-2005, 12:29 PM
dark,
you are correct on how the system works but older GMs and Fords use the air system on larger engine'd cars, pretty common. although i do not recall ever seeing a VW with an air system....? for the air system to work there needs to be an air pump which 99/100 are belt driven units off the front of the engine.
Kevin,
if you have 2.25" piping you want a 2.25" cat.... magnaflow pt# for you would be: 54305 for the mirror polish high flow. all of the other cats they have do not flow aswell as the mirror polished high flow units. that is the exact same cat i am using only mine is 2.5".
good luck!
you are correct on how the system works but older GMs and Fords use the air system on larger engine'd cars, pretty common. although i do not recall ever seeing a VW with an air system....? for the air system to work there needs to be an air pump which 99/100 are belt driven units off the front of the engine.
Kevin,
if you have 2.25" piping you want a 2.25" cat.... magnaflow pt# for you would be: 54305 for the mirror polish high flow. all of the other cats they have do not flow aswell as the mirror polished high flow units. that is the exact same cat i am using only mine is 2.5".
good luck!