high flow cats
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*Sighs* P0420 Code after American racing header install with high flow cats
Please forgive me if I’m reposting I couldn’t find a good answer anywhere else I just installed my headers and high flow cats about 3 weeks ago and just got a P0420 code. Has anyone had this issue after a set up like mine? What do you guys think I can do to fix it. Starting to think these...- Samzilla
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- headers high flow cats p0420
- Replies: 29
- Forum: Engine & Performance
