I finally decided to replace my rattling cat today. After removing the catalytic converter, I decided to run it for a bit. WOW was it loud. It sounded surprisingly nice too. I've heard Miatas without the cat before, but they were always muffled (I.E. Spec Miata). I've always liked the way they sounded. The majority of the raspiness is gone and the sound is quite a bit deeper.
Upon installing the new (used OEM) cat, it pulled noticably harder. The old converter had a large peice wedged perpendicular to the flow creating an obvious obstruction. I was also able to easily pull out the "brillo-pad" considering it was just sitting there inside the housing. This thing was toast.
Just thought I'd share.
Upon installing the new (used OEM) cat, it pulled noticably harder. The old converter had a large peice wedged perpendicular to the flow creating an obvious obstruction. I was also able to easily pull out the "brillo-pad" considering it was just sitting there inside the housing. This thing was toast.
Just thought I'd share.