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If you run an actual stage 2 file, you should get one step colder plugs and gap them properly. If you intend on running a stage 1 file and just have the CEL coded off to run catless DP's, then you don't need new plugs. With that being said, I would suggest that you don't skip out on the "non fun"/support-mods when starting to add power to these cars. You'll thank yourself later.
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