Originally Posted by
GraphiteGhost
I would be sure to put the metal screen back in/on the MAF before closing it up. The screen is very fine so it shouldn't pose any restriction to airflow, and might catch any debris before injestion. I would also inspect very closely, the rim of the MAF after removing that plastic screen, it sometimes cracks the outer ring and you do not want any air leakage in the intake path. When I removed the 74mm screen during the 74mm TB/MAF upgrade, that outer case cracked in two places and I had to seal it up before reinstallation. Just my $0.02 worth.
I thought about keeping the metal screen but didn't see anything caught in the screen and I have decently new air filters so I decided against it. I haven't had any problems so far, but maybe I have just been lucky. I didn't notice any cracking but thanks for the tip, I will make sure I check just to be sure next time I am under the hood.
Did you notice any difference after the retune you got after the 74mm throttle body mod? I was going to wait to get mine tuned on a dyno but since eurocharged was having a sale I jumped on it and am going to get a remote tune. I have heard nothing but good things about the tune so I am excited to see what it's all about.