I may have to drive out there this summer then, people that have their tunes rave about them.
What's curious is the EEPROM service for $199.00 when checking out.
Does this appear to capture an image of your ECU that you can revert back to if needed? Someone that is technical needs to chime...
It will throw a CEL but as long as you’re not tuning the ECU, I don’t see how they can deny warranty unless they can prove the catless downpipe caused the damage.