Unknown part with vacuum reference? (NA6)
 

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.
https://cimg9.ibsrv.net/gimg/www.mia...b56dece6a3.jpg
https://cimg6.ibsrv.net/gimg/www.mia...d3d9e62de3.jpg

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.