That’s interesting. I went with 20’s all around and the rear sticks out a smidge more than the front. I think it’s perfect, A-Spec though. I’m running the pro kit and I was shocked how much better it looked with the spacers.
But sure, if you only want two that’d be fine.
Did you ever figure this out? I’m trying to remove my stock inlet pipe and I’m stuck trying to remove the breather hose that goes to the valve cover. It has three of these worm gears that look like they are not removable. Anyone else have this problem removing the factory inlet tube? Aspec btw.