Cummins Diesel Forum banner

H&S Black Maxx - old tune advice, I found .27

680 Views 0 Replies 1 Participant Last post by  Steigerelli
So, I've been suffering with latest tune for a while now. Old Mini Maxx tunes are all over the place, but Black Maxx... not so much. Anyway, I got lucky and found .27 saved on my computer. The thing is, I've never gone backwards with a tune before. I thought I read that it can be done. Can someone advise me that's done it before?
1 - 1 of 1 Posts
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top