Denom

iTrader: (2)

I kept smelling gas on my car, and thought maybe my cats were not working right, so I purchased some thunderbolt 300 Cell ceramic cats to replace what I had. It turned out my cats were actually hollow. I've previously had my car tuned, and want to know if my afr might have changed, and if so, which way (Rich or Lean).

Anyone know?

Darth_V8r

iTrader: (4)

Potentially add some back pressure, but shouldn't affect fuel trims

RixTrix

Only out the tailpipe....

Exidous

iTrader: (11)

Less flow will potentially mean less fuel needed. Just depends on the difference in flow between a good cat and a hollowed out chamber.

Shouldn't be too much. Will run rich if anything.

Denom

iTrader: (2)

Thanks guys. Rich is safe, and lean is mean, so I'm more than happy if it's running a little richer.