MSD Digital Programmable 6AL-2 - Black 31015R These headers use Hedman's patented

These headers use Hedman's patented TIGHT TUBES clamshell-style collector that allows for a low-profile header design

16 x 10 x 0

Our new billet idler solves the two common complaints about OEM idlers

Chevrolet: Silverado 1500 HD 01 - 06 6 L Engine

MSD Digital Programmable 6AL-2 - Black 31015R These headers use Hedman's patentedThe Programmable 6AL 2 lets you lock out the distributor and program a timing curve via a PC. You'll also be able to set a 2 Step Rev Limiter, a retard for use with nitrous and even a boost timing curve for forced induction engines! The Programmable 6AL 2 shares the same advanced features of the new 6AL 2 with 535 primary volts and spark energy reaching 135 mJ! Vibration mounts, wiring and a PC cable are supplied. Must use MSD Pro Data+ Software to