I've have a P0420 that keeps poping up after I clear it so based on what I've read here the precats are probably bad. 80k is long behind me so no luck on the warranty. Alternatives seem to be: 1: myster mod, 2: new precats, or 3: MSDS headers. If there other cheap alternatives please let me know.
My real question... Do the new headers come with new precats, or are the precats eliminated with the new headers ? If new headers will most likely solve my problem then I think that would be the way to go since precats will cost a few hundred, I might as well spend a few extra dollars and get the performance boost.
Thanks,
Tom
99 Sport ATX
1 owner, 94k
Mobile 1 since 1k
Mods:Sony MD Player, Sony XA-300 expansion unit,
Sony CD Changer, XM Radio, 350Watt Alpine Amp,
2 10" Subs, Remote starter, glow gauges, K&N filter,OMP Front STB, SVT Exhaust(no res.)
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