Manley Extreme Duty Stainless Exhaust Valve - 1.590 in Head - L62 / L92 - GM LS-Series 13-RS1-B-M 5mm scanner/music port with a

5mm scanner/music port with a coiled 3

Vent Windows for the ultimate in aerodynamics

Features upgraded Bluetooth and total cell phone control

CNC Billet Construction

Manley Extreme Duty Stainless Exhaust Valve - 1.590 in Head - L62 / L92 - GM LS-Series 13-RS1-B-M 5mm scanner/music port with aDiscover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors, these valves are your ticket to unparalleled performance. Product Description: Exhaust Valve Extreme Duty 1. 590 in Head 0. 313 in Valve Stem 4. 923 in Long Stainless