AFR High Performance Exhaust Valve - 1.880" Head - 11/32" Valve Stem - 5.450" Long - BB Chevy Seat Belt Hardware 0:1 AFR (Requires Wiring) 0-5V

0:1 AFR (Requires Wiring) 0-5V Output Methanol values from 3

The deluxe arms have a more precise spring pocket for more consistent suspension geometry

GMC: Sierra 1500 19 - 19 AT4

High Tension

AFR High Performance Exhaust Valve - 1.880" Head - 11/32" Valve Stem - 5.450" Long - BB Chevy Seat Belt Hardware 0:1 AFR (Requires Wiring) 0-5VProduct Description: Exhaust Valve High Performance 1. 880 in Head 11 32 in Valve Stem 5. 450 in Long Stainless Big Block Chevy Sold Individually Advanced FLOW engineering (aFe Power) is a premier designer and manufacturer of automotive performance upgrade systems and components. Current product lines include cold air intake systems, high performance direct fit and racing air filters, exhaust systems, intercoolers, turbochargers, electronic