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+--- Thread: 06’ 9900i with a CM870 ISX tune options (/showthread.php?tid=7267)
06’ 9900i with a CM870 ISX tune options - Luckyjayb - 04-16-2021
I’m trying to find who would be able to provide the best tune for better fuel efficiency on my 06’ 9900I. It has a 565hp cm870 isx with 3.55 rears and a 13 speed manual. I’m averaging 5.4-5.5. I usually am 78k-80k at all times. I know it’s not the most aerodynamic truck but would love to have a proper tune put to and hopefully get closer to 6mpg. I’m located by Birmingham, al.
RE: 06’ 9900i with a CM870 ISX tune options - Rawze - 04-16-2021
maybe try forum member running rough.
RE: 06’ 9900i with a CM870 ISX tune options - Luckyjayb - 04-16-2021
Will do. Thanks
RE: 06’ 9900i with a CM870 ISX tune options - Luckyjayb - 04-16-2021
(04-16-2021 )Rawze Wrote: maybe try forum member running rough.
How do I contact him? Trying to figure the site out
RE: 06’ 9900i with a CM870 ISX tune options - Running rough - 04-16-2021
(04-16-2021 )Luckyjayb Wrote:(04-16-2021 )Rawze Wrote: maybe try forum member running rough.
How do I contact him? Trying to figure the site out
I sent you a pm