Mk3highline 10 Posted November 11, 2014 Well with the remains of the pipe work I got left over from the 24v swap I found a hose with a one way check valve Where would it go on the mk4 4mo also Is there any benifit from using it? Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted November 11, 2014 Am still curious to know the benefits of this as well. Ran without one for years. Put one in and no difference really. Quote Share this post Link to post Share on other sites