Originally Posted by 8valve

WHen you replace the front Y pipe with one without Pre Cats, and also remove the Main Cat, will you have any problems with the Oxygen sensor operating correctly ? I am also considering running duals all the way back. Somewhere I think I read on the forum that removing the cats woudl cause Oxygen sensor problems. I have a 87 with only one Oxygen Sensor on the left pipe.

Thanks
8Valve

Originally Posted by pmihaltian

You can get a cat-less front Y-pipe at most of the Corvette Parts houses. Here is one with a high output main cat:

http://www.ecklers.com/corvette-y-pi...1986-1991.html

Originally Posted by torchred89

I had to put preheated one on mine.

Originally Posted by pmihaltian

You can get a cat-less front Y-pipe at most of the Corvette Parts houses. Here is one with a high output main cat:

http://www.ecklers.com/corvette-y-pi...1986-1991.html