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Calibration Needed 2014 Coupe SI

Posted: Sat May 30, 2026 8:00 am
by jbod
Hello! I need help with tuning my 14 Coupe with the following performance mods:

- Skunk2 CAI
- RV6 2.5" Catted DP
- Full Race 3" Catback exhasut

(I know it would be better to have a full 3" exhaust, but I wanted a catted DP and couldn't find a 3" catted DP.)

I'm currently running a basemap I found in these forums from a post with similar modifications, but I just installed the DP this past week and a new tune could definitely improve performance.

Any help would be really appreciated! I can compensate anyone for their time as well.

Re: Calibration Needed 2014 Coupe SI

Posted: Mon Jun 01, 2026 3:28 pm
by jbod
Following up on my first post with some more information because I realized I was very vague...

I believe my current tune (attached) is running too rich based on the very negative short term trim experienced in the datalog (also attached). Datalog is just a short drive to work. Not sure if it is enough to really determine anything. I've been trying to teach myself how to tune, but there's still a lot I don't understand.

If someone could look over my log and tune to confirm my suspicion (and make sure everything else looks ok/safe) that would be great! Any help in modifying the fuel tables would also be appreciated.

Re: Calibration Needed 2014 Coupe SI

Posted: Mon Jul 13, 2026 9:31 pm
by CalibratEd
The car is running a bit rich but not bad. You can make small fuel changes to lower the trims. No knock is present as well.

-Ed