Could somebody elaborate about this as it pertains to the M104 engine, please?What is a resonance flap??
This. In a nutshell.That's it… intake resonance valve, it changes the "effective" length of the intake runners to increase torque at lower RPMS (being longer) and at higher RPMS (being shorter).
I went out tonight to test the car specifically for that, and boy, that's one KITP I haven't felt in a while! the car has never felt this snappy in a while! I guess it's one of those things that just teach you to never neglect even the smallest, seemingly most trivial things.the kick in the pants @ 3500 RPM