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The Stainless Works collector filler diamond is a 2-1/8" diameter CNC laser-cut insert built from 304 stainless steel for corrosion resistance. Used with 4:1 headers, it helps square up primary tubes and prevent leakage inside the collector. Precision laser cutting ensures consistent sizing and fit; these filler diamonds are proudly made in the USA for dependable header fabrication.
Stainless Works 2.125in Dia Collector Diamond
