- First Name
- Josh
- Joined
- Oct 1, 2019
- Threads
- 141
- Messages
- 1,733
- Reaction score
- 573
- Location
- Orange County, CA
- Website
- www.merakiautoworks.com
- Car(s)
- 2020 Toyota Supra
If you run the Active Autowerkes downpipe you will not get a CEL so no need for a tune, but tune will result in the most power out of the downpipe.Is it necessary to do a tune if I want to run a catted DP only?
I know that on other cars I've owned there was concern about running lean due to exhaust upgrades on stock ecu's
-Josh
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