Had the airbox opened up abit (freed up the bit feeding air) & removed the resonator box. I have a K&N element in there too. PBV was originally set about 2.8 to 3.0 bar.
However, ever since I opened up the airbox, the engine feels like its revving more freely but it doesn;t seem to have torque anymore. This is most noticable in low revs.
I then moved the PBV pressure down to 2.5 but it didn't help.
Before that it felt like it had more torque (a more direct throttle feel) but less willing to rev.
Any ideas what the problem is?