EXTRACTORS
Noun
extractors
plural of extractor
(automotive) A set of pipes fitted to the exhaust ports of an automotive engine, designed to increase its power output (essentially by altering gas pressures to get more fuel through it).
Source: Wiktionary
EXTRACTOR
Ex*tract"or, n.
Definition: One who, or that which, extracts; as:
(a) (Surg.) A forceps or instrument for extracting substances.
(b) (Breech-loading Firearms) A device for withdrawing a cartridge or
spent cartridge shell from the chamber of the barrel.
Source: Webster’s Unabridged Dictionary 1913 Edition