Hey guys, I'm a big noob and am starting my MS2 install on my NA6. I noticed that the furthest forward (forward facing) manifold pressure "tap" feeds a vacuum line going to an unknown part on the other side of the car. Just wondering what it is, what it does, and if I need it. Thanks! Pics included.

 

Cruise control

 

Thanks

 

Put a small check valve and a small vacuum canister in line and will really stabilize the CC. If you turbo and or re-gear later is a huge improvement.