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anyone else think with this its slightly not as quick low down but pulls harder and faster higher up the revs?

No, I've just pulled 350bhp with mine todat![]()
Not logged it if I'm honest, Rob..
Got a new clutch on ofder then I'll log it once I fit it..
I would take the airflow readings with a pinch of salt to be honest as it is unlikely the maf scaling is identical to that of the oem maf housing. Most aftermarket intakes have a slightly larger diameter pipe than than standard which in turn causes the maf sensor to under read.