XR1 COL/MUF SHTY 23/8IN 41/2OUT 14X63/4

This patented, award, and race-winning vacuum Wave Collector is designed to replace your current open header collector and serves as a power-producing merge collector and muffler. The technology results in pulling air through the engine faster, which creates more power. It ensures the wave's "anti-node" reaches the exhaust valve at the precise time for its lower pressure to help fill the combustion chamber with a fresh charge and further extract spent gases from the chamber via a vacuum effect. Recommended for full-chassied cars and high-horsepower applications, and accepted in NHRA, IHRA, Hot Rod Series, Brackets, Super Chevy, and NSCA. Made from T-304 stainless steel for rust resistance and 100% welded construction for strength, with T-304 stainless steel wool for sound control. Made in the USA.