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Crackle tune on stock cat

1046 Views 6 Replies 5 Participants Last post by  BWill9886
So I’m thinking of getting a ktuner soon and I want to load a crackle tune in but I’m pretty sure it’ll blow out the inner filling of the cat, if it does would the motor be fine or would it throw a check engine light?
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Don’t bother. Most reputable will not offer a crackle tune on a all motor 9th gen.
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