Quote:
Originally Posted by BackroadBomber
If you gut the cat make sure you get the "spark plug non foulers" or whatever they're called... Basically they're 3 inch long tubes that are threaded and they move your o2 sensor farther from the pipe. And since an o2 sensor works on heat, it will trick your car into thinking that the cat is still working. That way your cel stays off and you can still pass inspection.
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Taking the oxygen sensor out of the exhaust stream does make it read leaner.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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