Slotted headers

[RcJunkie13]

Can someone please explain this to me… ok so slotted headers… why? I mean say you don’t get it exactly matched, then part of the port is being blocked sacrificing performance… right? So why don’t they just put 2 holes so the ports don’t line up perfectly… this has always bothered me since I got my end bleed pipe.

 

[Rep732]

No junkie the slot is there because the pipe comes too close to the flange that you can't get a bolt through the flange