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The Stainless Works collector filler diamond is a 2" diameter CNC laser-cut insert made from 304 stainless steel for corrosion resistance. Designed for 4:1 headers, this filler squares primary tubes and eliminates leakage inside the collector junction. Precision-cut for reliable fit and alignment, these filler diamonds are manufactured in the USA to support accurate header assembly and leak mitigation.
Stainless Works 2.00in Dia Collector Diamond
