Its just a B16a1 with a skunk 2 manifold.. and a jdm 4 to 1 header......When i stepped on it.. I got a CEL I went a head and shut the car off and it dissapeared.. Im going to wait until i connect the exhaust because I was runnong on open header and it was obnoxiously loud! ! ! I also need to check the ignition timing as the car I dont have a timing light...but ill managage to do that tommorow if my nigga comes to my side of town ! !