For the last couple months I have been playing with this valve. My test was with gas engines, (ls1's). On ls1 tech, we posted teh results. The cliff notes.

Zombie is a friend of mine that owns the car in the ls1 tech thread. I built the car. We put the valve on. The results were posted. Another member put one on his cummins truck with a s468 I think. He just posted his results and on my browser its back about 10 pages. I ve been doing it to my twin set up , but have been waiting for parts since Im changing to a hx40 19. Ressults to follow.

Anyways, heres teh link.

http://www.ls1tech.com/forums/forced...ke-graphs.html

I have never met the sellers, only talked to them via email. If this violates rules, delete it. If you delete it, do it knowing that your probably cheating every diesel owner the knowledge of what should become stardard equipment on any turbo vehicle.