hay
i noticed the cat on my 93 z is welded on backwards. im planning on a new exhaust in the future (engine back) so it will sometime in the future get replaced. why would someone put the cat on backwards. could that be why my mpg is getting a little worse as time passes. i was thinking the low compression was the cause of the small loss in power and milage. car is loud (normal) and doesnt have the quite exhaust and hissing that i heard when i had to change the cat on my truck so i think air is getting by the cat ok. is it something i should deal with right away.