I have a 2022 5.7 and I just put stainless works 1 7/8" long tube headers on it but now my truck keeps throwing a code, "P0430". I'm pretty sure it's throwing this code because of the high-flow cats. I already have a Diablo tuner and unlocked PCM in the truck so I emailed Diablo to see if they could send me a flash for the headers, but they said they don't do that and gave me a couple of websites that could send me a custom tune for my truck. ( www.hemifevertuning.com , www.diablotoona.com , www.highhorseperformance.com). Does anybody have any further recommendations on what route I should take for the tune?