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The Stainless Works collector filler diamond is a 1-5/8" diameter CNC laser-cut insert manufactured from 304 stainless steel for corrosion resistance. Designed for 4:1 headers, it squares up primary tubes and helps eliminate leakage inside the collector. Precision laser-cut for accuracy and consistent fit, these filler diamonds are proudly made in the USA for header builders and fabricators.
Stainless Works 1.625in Dia Collector Diamond
