GreddySpyder
20+ Year Contributor
- 414
- 0
- Oct 21, 2002
-
Alabama
i have a greddy type s BOV on my eclipse that was on there when i purchased the car. i just noticed that there are two connections for vacuum lines on the BOV, but only the upper one has a line on it. What is the lower connection for and are there any advantages/disadvantages to not using it?