"98 -"02  LS1 F-Body, 18" O2 Extension*Part#: 135-O2EXT-4S-18This is a plug-and-play extension and does not require any cutting or splicing. However, some manufacturers' long tube headers need these 18" extensions to give the factory 02 sensor...

Based on the original concept of chambered exhaust that first appeared on high performance GM vehicles of the 1960’s, chambered exhaust produces a very unique & aggressive note. Now available these chambered mufflers can be added to your...