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Need a tune for 9th gen si
Posted: Tue Feb 03, 2026 4:12 pm
by icecream
Hi just wondering what hondata maps should i run with a SRI and Catback exhaust?
2015Honda Civic Si - Need help with the tuning
Posted: Tue Feb 03, 2026 7:07 pm
by icecream
I'm running a SRI and a 2.75" catback exhaust. Currently running it on a hondata reflash do i need to do some tweaking on it or the reflash is fine?
Re: 2015Honda Civic Si - Need help with the tuning
Posted: Mon Feb 09, 2026 7:19 pm
by CalibratEd
You need to run the calibration that is closes to your modifications. If you post the calibration you are running and a Datalog, I can let you know how the car is running.
-Ed
Re: 2015Honda Civic Si - Need help with the tuning
Posted: Mon Feb 09, 2026 8:31 pm
by icecream
I'm upgrading to a ... exhaust soon hopefully by the end of the month. I can post the datalog tomorrow it night time here in Canada.
Re: 2015Honda Civic Si - Need help with the tuning
Posted: Mon Feb 09, 2026 9:00 pm
by CalibratEd
icecream wrote: Mon Feb 09, 2026 8:31 pm
I'm upgrading to a ... exhaust soon hopefully by the end of the month. I can post the datalog tomorrow it night time here in Canada.
Sounds good.
-Ed
Re: 2015Honda Civic Si - Need help with the tuning
Posted: Tue Feb 10, 2026 5:44 pm
by icecream
Here's my calibration and datalogs. Sorry for the late message.
Re: 2015Honda Civic Si - Need help with the tuning
Posted: Wed Feb 11, 2026 6:52 pm
by CalibratEd
The trims are ok, but you have 16 counts of knock. The logs do not show when they occurred, but the count is displayed in the WOT log. Also, the car is running rich at WOT.
I suggest you reduce timing where knock is occurring and lean the fuel at WOT.
- Ed