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Dec 12, 2025 - 11:08 AM
The Stainless Works M242H3CAT kit includes Stainless Works’ own high-flow metallic core catalytic converters.
What cats come with the headers? Stainless Works 2" Headers - Performance Connect (2015-2025 Mustang GT) - M242H3CAT
What cats come with the headers? If its not the gesi high flow can they be added?
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Open Feb 19, 2026 - 06:26 AM
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