I had a H23 auto in my Lude w/ a RS Akimoto intake, DC header and Greddy Cat-back. on 1/2 to full throttle their was a strong intake moan that was fairly audible inside the car and strongly audible outside the car.
Did the JDM H22 manual swap thing but now the moan from the
RS Akimoto intake is no longer present...
What's up???
any thoughts???
Throttle body problem possibly???

 

unless you're gettin a CEL, there's no problem.

people usually prefer their cars to NOT make loud noises.