28 Oct 11 11:01, Mark Hofmann wrote to Roy Witt:   
      
      
      
    RW>> Wouldn't have it any other way. 8^) What's nice about it is; if you   
    RW>> take it beyond the smog regulations and it runs like a stripped-ass   
    RW>> ape, you can save that program when it comes to smog check time and   
    RW>> return it to stock. Then put that saved program back in it when   
    RW>> that's done.   
      
    MH> You can also use O2 sensor "standoffs" to keep the computer from   
    MH> triggering codes if you run straight pipe.   
      
   They have something else for that. I forget what they're called, but   
   they're O2 sensor replacements that tell the CPU everything is as it   
   should be.   
      
    MH> I wouldn't recommend this, as if they physically inspected the   
    MH> exchaust, it would fail.   
      
   You can remove the cat and the exhaust will pass emissions, but it won't   
   pass the 'look' test. Not many techs look under the car. I understand that   
   in California, the CHP (highway patrol) now uses a mirror on a stick to   
   take a look at your exhaust system while standing next to the car.   
      
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