Bare with me on this but difficult to explain over text!
Say I'm in third and put my foot down from 3000rpm to 4000rpm it almost like a pulsing sound from the air being sucked in but after 4000rpm it seems like the engine is using all the air being rammed in and is fine,
And seems worst when I start to put my foot down at 3000rpm, if I boot it from low down seems to be less noticeable?
I recently fitted a Bluefin so maybe the ecu is still learning and try to cope with the extra air from the revo induction kit, don't think its effecting power but just doesn't sound good,
Filmed a video putting it on youtube now once I trimed it,
Any ideas do you think it will clear itself?
12022013022 - YouTube