When to upgrade MAF?

[Steve]

I had a WE4 a few years ago that ran 10.70's thru a stock MAF and I was using a 6776s turbo with a 4" inlet with a 3" MAF pipe. I always worried that the 3" MAF and pipe were slowing the car down so I upgraded to the 4" Z06 MAF and a 4" MAF pipe and my then ran 10.70's! It didn't pick up any time at the track but I did think I could feel a spool up improvement but that may have been all in my mind to make me feel better since I dropped $500 and didn't get any faster!:biggrin::tongue: It did look faster however with the 4" MAF pipe though!