installing nismo intake with no manual in the box, it took me like 2 hours. hopefully i did it right hehe....any ways, now i notice when my car goes into idle, the engine tweeches like every 5-10 sec. and everytime when it tweech, i get a loud boom in my stillen exhaust...wtf. one of my buddy told me to reset the ECU by disconnecting the battery for couple hours, but that dident work. i dont know....what do you think, guys????

 

something's loose.

 

I do believe that even the NISMO CAI is one of the ones that exhibits run-down issues (stalling upon slowing to a stop) and idle-quality issues. I could be wrong, but I seem to recall being a little surprised that even the NISMO one had the same issues.