Offshoreonly.com - CMI headers. Will I have to retune?

Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - CMI headers. Will I have to retune? (https://www.offshoreonly.com/forums/general-q/358504-cmi-headers-will-i-have-retune.html)

nova26

01-09-2019 12:16 PM

CMI headers. Will I have to retune?

I have Eddie marine thunder exhaust on my small blocks now. Wanting to go to CMI‘s. Will I have to have it retune or can I plug and play ?

Baja Rooster

01-09-2019 12:29 PM

I’d put in a wideband and let that tell you.

BenPerfected

01-09-2019 07:45 PM

Very nice exhaust, but I doubt the CMI will show much if anything on the GPS.

nova26

01-09-2019 09:15 PM

If I get any gains I would be happy. I just really like the way the look under the hatch. I just don’t want to retune it. And I’m sure the sound will be better. The guy I had tune it said to put them on it will be fine. I have a lot of money in the motors thought it would be smart to bounce it around here. I appreciate all the replies .

Griff

01-10-2019 01:20 AM

You will not need to retune them. I doubt you will see any difference in performance.

All times are GMT -5. The time now is 10:38 AM.