Chevy and GMC Duramax Diesel Forum banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!
1 - 2 of 2 Posts

4 Posts
Discussion Starter · #1 ·
Howdy, new 6.6 2500HD owner from California, behind enemy lines!
I'm anxious to learn what I can do to increase performance here in this state while remaining "legal" for the emissions sniffers, aka Tailpipe Nazis.
I got my 2015 used about 6 months ago. It has 94k miles and just started popping the P0420 and P24A0 codes. Not happy! I've heard several causes could be the issue. Anyway, looking at beginning a new project!
1 - 2 of 2 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.