When mine died I sent it to Swamps to rebuild and upgrade. Even though it was
dead when I sent it in, they were abel to fix and upgrade it for no additional charge.
The truck is much more quiet, and the fuel milage is up. These may be just because
the old one was slowly going bad for a long time, but there is a noticeable difference. It
gained 10% better milage when towing, that really surprised me. I hand calculate
my milage. Before the injector noise was prominent, now I can hardly hear them.