American Racing Headers - 2001 -2002 Camaro and Firebird - 3" Y-pipe with catalytic converters Y Pipe ONLY American Racing Headers F-Body systems are some of the finest in the industry. Manufactured from all 304 stainless, these headers are available in 1-3/4", 1-7/8"/2" step, and 2" primaries. Merged collectors with scavenger spikes (see image below) are standard along with their bulletproof high-flow metallic substrate catalytic conveters. Systems are available as direct bolt-ons for all 1998-2002 models as well as race headers for high output extreme applications. Expect outstanding performance gains throughout the entire rpm range and second to none fit and finish.