New Maf's 253 (should I be worried)

[NC87GN]

Just bought 4 new Maf's from a very reputable vendor. They are stock appearing however the connector is in a different location. It tried one out this morning to see is the MAF readings on the scanmaster hit 255. It hit 253 under WOT at 21# of boost. I seen very little knock <1 degree as I did on the OEM also. However my OEM one hit 255. My question is should I be worried that it doesn't quite hit 255? I just want to be sure because I paid good money for these and if I'm not happy he said send them back ASAP to get my refund.

Mike Banas
87GN

 

[rastaz]

I wouldn't be worried... My OEM one maxes out at 253. Maybe someone can confirm but I always thought a bad MAF was lower than mid 240s