U7135 - 9r28 vs 9r29???

srt8-monster · Post by **srt8-monster** » Fri Jun 17, 2011 10:59 am

U7135
9r28
2008 Charger SRT8

Thinking about upgrading from 9r28 to 9r29. What are the major differences? I'm seeing allot of folks having issues with 9r29 so I am hesitant to upgrade.

Thanks

srt8-monster · Post by **srt8-monster** » Mon Jun 20, 2011 4:33 pm

Wow thanks for the response... I am not one to just upgrade to a new version without understanding what the changes are. Version 9r28 has the "Raised Shift Points" so why upgrade an SRT8? If I understood why then I would take the time to make the change.

Post by **mikel** » Mon Jun 20, 2011 4:41 pm

Added MPG booster tunes and added raised shift points for 08- up 5.7s.

typan · Post by **typan** » Mon Jun 20, 2011 4:56 pm

will 9r29 do anything for a 2006 5.7??

Post by **mikel** » Mon Jun 20, 2011 5:16 pm

adds MPG booster tune....

azmonster0574 · Post by **azmonster0574** » Wed Jun 22, 2011 8:40 pm

I have a 2008 srt8 manual tranny, what does the MPG booster tune do? Should you still run with 91 Oct or drop to 89? Does it have the same type of performance/ power as the 91 CAI tune? Also,I have updated to the latest crom and still dont see anything for the throttle boost? Is that automatically updated in the 91 CAI tune? Are there parameters that can be changed?

U7135 - 9r28 vs 9r29???

U7135 - 9r28 vs 9r29???

RE: U7135 - 9r28 vs 9r29???

RE: U7135 - 9r28 vs 9r29???

RE: U7135 - 9r28 vs 9r29???

RE: U7135 - 9r28 vs 9r29???

RE: U7135 - 9r28 vs 9r29???