guys, I am getting a check engine light after installation of stage 2. Have stage 1 also.
First received after upper i/c pipe came off. It was reset and thought it was fixed but now keeps coming back even after battery disconnect.
I will have the code checked when I bring it in to the shop but in the meantime any thoughts?
Thanks for any help.

 

I have the same problem. My UICP came off but the thing is my CEL didn't came on. The other day when I remove the Air filter and MAF, forgot to put it back on and started the Evo. It sound bad so I shut it off and reinstall the MAF and filter in. Sound a lot better but the warning light "Service Engine Soon" came on. I was like Oh Sh** I'm F***ed. Anyways, I remove the battery for like 15 min and put her back and fired her up. Light went off since. About your CEL, I hope it's nothing major. Good luck