[pdxhummerguy]

Originally Posted by audiofetish

Another alternative is http://www.ssdieselsupply.com/produc...UMMER_H1s.html

The owner is great. I purchased a lot of parts including my heads from him. He owns an H1 as well.

does anyone make a turbo back set-up? I have one on my 7.3 psd and it's great!