Para82

"Cat Converter deficiency in Bank 1"

Anyone get this one before?

997S with 96,288 miles

Falcondrivr

I think it means you're out of weed.
Sorry. Couldn't resist.

Para82

Haha first thing I thought too....

Petza914

If you're running your original cats, at 100k miles, they might need replacing. Good opportunity to get a set of 200 cell hi flow versions from Fabspeed or elsewhere that uses the high quality HJS components. You might be able to circumvent the error a bit longer by using O2 spacers, or you might just need new O2 sensors. I think I've got a set of 4 used ones I replaced when trying to troubleshoot a cel on my car that turned out to be an intake leak that I'll make you a deal on if you want to try o2 sensor replacement as a possible solution.

Para82

Appreciate that Pete, i'll get it into the shop soon and get back to you. Might be a good time to go with the 200 Cell hi flow. Will that improve sound with a PSE?

Petza914

Sound, oh yeah. If you want to increase efficiency of flow even further, look into a set of mandrel bent equal length headers. I have a full Fabspeed system - headers, 200 cell x-cats, and their Valvetronic mufflers (their version of PSE that's no longer made for our cars) and the sound and performance is excellent.

Para82

Very nice!

As long as can keep my PSE I will consider 200 cell cats....

Petza914

You absolutely can. The PSE valves are on the mufflers themselves. Cats and headers are independent and can marry up to the PSE mufflers.