Tangs should hold it as long as they are all in place especially the ones directly behind the fan intake. Are you sure it is sticky when you pull off the film from new insulation? And the firewall has to be real clean for anything to stick to it.
The only thing VW used was a felt strip on the ribs. If it has anything else, it was done by a PO
__________________
derf
No matter where you go,there you are.
My post are my opinion of what has worked for me but are not the gospel  What I post is what I do on my cars. I am here to try and help not to impress or boast
|