my vacuum check valve was all melted so i just replaced it with a straight piece for now....i checked and the part is 30 bucks....should i replace this? is it necessary, what the hell does it do? seems like it just limits airflow

 

You should be fine w/o one.

 

should be fine... some guys replace all the vacuum lines with no check valves

 

cool thanks I just replaced it with a rubber tube, it works fine

 

You can get ones from US Plastic for like a dollar. I have one in my car now.

 

really? can you give me a part # please?

 

i think AutoZone got them too like for 4 bucks

 

http://www.usplastic.com/catalog/pro...oduct_id=15641

I believe I got the 1/4" Kynar ones. They hold up to heat better.

 

i found out what use they have...theyre one way valves so only aloowing air to go in one direction and not return...and they are somehow needed for your turbo to work otherwise i think you loose serious boost

 

^^^Some people get rid of the WHOLE old vacuum lines system
here http://www.audizine.com/forum/showthread.php?t=235106
more info about check valves http://www.audizine.com/forum/showth...ht=vacuum+line