The Stainless Works 4-way collector is a mandrel-formed header collector made from 304 stainless steel for corrosion resistance. It combines four 2-3/8" ID primaries into a smooth-flow tapered 3-1/2" OD single outlet to improve exhaust scavenging. CNC-formed with a smooth taper for reliable transitions, these collectors include a lifetime warranty and are proudly manufactured in the USA.
Stainless Works 4 way collector 2-3/8in inlet 3-1/2in od outlet