shortly after my MAC install my SES light came on, and I couldnt give it more than 3/4 throttle before the engine and tranny would violently shake. I went to my buddies exhaust shop to get my Ypipe welded into my Ipipe and while I was under the car I checked out my passenger side rear spark plug boot and I'll be d@mned if it wasnt plugged in. I guess I didnt push it in hard enough after the install and was running on 7 cylinders <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Also got my codes scanned and reset. 1 was for the o2 sensor (my header leak) and the other was some strange code, P1137 or 1167 or somethin like that...but it hasnt come back on yet since I got all 8 cylinders firing, she's runnin great <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />