Was doing a Perrin turbo intake install today and came across what looks like something is missing or maybe no big deal. Can anyone tell me what it is? Its right below the cone filter of the intake and MAF, center of the pic.

 

Bleeder screw for slave cylinder.

 

i think they typically have a rubber cap on them.
no big deal.

 

just installed a new tranny and can confirm thats the bleeder for the slave cylinder.