Headers for SB Chevy 283-400 oval port Header Flange Gaskets HG9301 throttle-bodies Keep the check engine light

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Headers for SB Chevy 283-400 oval port Header Flange Gaskets HG9301 throttle-bodies Keep the check engine lightOverview: Header Flange Gasket Specs: Brand: Doug's Headers Prop 65 (C, R or CR): CR Prop 65 Yes No: Yes Title: Doug's Headers HG9301 SB Chevrolet 283 400 oval port Header Flange Gaskets Part Number: HG9301 Emissions: This Product is Certified by the Manufacturer as being Non Emissions Related part per CARB and EPA regulations and therefore does not require emissions certification or CARB EO and is legal in all 50 states.