Greetings everyone,

edit: forgot the mention the car - 2009 r56

Symptoms:
1. Stuttered blow off noise - Does this after heavy boost. It's as if it were a rapid fire blow off valve or something. attempt at spelling out how it sounds... psh-psh-pshhhhhhh. Again, only seems to happen after heavy boost. (i can try to get some audio, not sure it will turn out well though)

2. Not getting ANY blow off noise unless i'm over 40-50% throttle.

3. I don't seem to be getting much boost until im nearly at 4000 RPM's. My low end is m.i.a. and it makes me

I originally thought it was the diverter valve, so i took it off and checked it. Didn't appear to be damaged, but i bought a new one and replaced it. No change.

Checked all of the induction lines, couldn't find any cracks or breaks anywhere on them.

Checked vacuum lines - The wastegate line seemed to be pretty beat. Replaced all vacuum hoses. No Change.

I bought an OBDii scanner and Torque hoping maybe i could get some more info, but i'm not really sure what to look for. I've seen peak boost levels around 14.2-15psi, although i don't have a boost tap, so i'm not sure how accurate torque is with this.

Not really sure where to go from here or what else i should be looking for.

P.s. - Only mods i've done to the car are AEM intake and alta hot side boost tube.