Yeah, i'm currently waiting on my alta v2 intake and janspeed manifold turning up, i'm fairly sure the standard airbox isn't helping. The only thing i'm undecided on is the AFPR as i didn't have the boost gauge installed before i put it on, but i lost all the pops and crackles when it went on, so i've definately lost some cylinder cooling from that, possibly some boost pressure as well through it trying to adjust to the correct AFR |