this is my first LT1, I have that three third gen z's, but the learning curve on this thing is like none I have ever had. The electronics and emmisions crap covering this awesome motor up are a pain in the ***... Now here are my questions, the cat come off sat along with the air pump and stock exhaust. Is it necessary to buy the plug to trick the computer that it still has a O2 sensor? Do I need to worry about optispark adding MSD coil and box?

 

Need more info.What year? You need an O2 senser.

 

95, I saw a piece that plugs in place of the O2 sensor to trick the computer.

 

if im not mistaken, you could only use those "fake" O2s at the locations after the cat, not the ones before it. you probably dont have any after the cat (95) , so you cant do that/dont need them. "o2 simulators!! thats the word nope, you need O2's

 

I have an MSD Digital 6 with an MSD coil - No problems.