Hey fellas, I am about to send off for my OBD1 conversion (PCMforless), my question is I am about to get a Custom y-pipe made and I will have no cats, so My question is will I need 02 Simsor anything. I would thank I wouldn't need any since the OBD1 cars did not require O2 sims or nothing. I am hoping about a 20 RWHP increase at least with the custom PCM job and the y-pipe and no cats, let me know what you guys thank, also I am thinking about getting my fans to kick on about 185.
Any help would be great