I'm converting my dual cat car into a single cat using RK Sports/AS&M Mid length headers. The pipes already have emission hook ups with two pre-cat O2 bungs. However, they do not have any post-cat bungs for the two rear sensors. What should I do? What's best for an emission state like NJ?
1) Install two post cat bungs and install O2 sensors (next to each other)
2) Install one bung and delete the other post-cat sensor with SIM or programming
3) Delete both sensors with SIMs
4) Delete both sensors through programing
I'm going to get the computer performance tuned (MadZ28) after the mods are complete. Not only do I not want to throw any codes, but in NJ, they hook-up to the computer. If I use SIMs or delete through programing, can the DMV detect the change? I should pass a sniffer test, as the cat is fully functional.
I already know changing to a single cat can be an issue, but I'm hoping if NJ asks, telling them my previous cats failed after 13 years will be enough of an explanation. If they ask why I now have 1 instead of two...well that may be a tough answer to have them buy off on. I'll have to keep my fingers crossed.
1) Install two post cat bungs and install O2 sensors (next to each other)
2) Install one bung and delete the other post-cat sensor with SIM or programming
3) Delete both sensors with SIMs
4) Delete both sensors through programing
I'm going to get the computer performance tuned (MadZ28) after the mods are complete. Not only do I not want to throw any codes, but in NJ, they hook-up to the computer. If I use SIMs or delete through programing, can the DMV detect the change? I should pass a sniffer test, as the cat is fully functional.
I already know changing to a single cat can be an issue, but I'm hoping if NJ asks, telling them my previous cats failed after 13 years will be enough of an explanation. If they ask why I now have 1 instead of two...well that may be a tough answer to have them buy off on. I'll have to keep my fingers crossed.
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