HSP Max Air Flow Bundle Kit For 2017-2019 Silverado/Sierra 2500/3500-CUST " All This heavier spring will help

This heavier spring will help control fuel delivery and smoke output under low boost

Requires adjustable secondary pump cam bracket to engage switch (QFT P/N 63-2)

-7mm Nozzle 5 holes @ 145*

or something in between

VF517 FORGED 20X10 108-140 POL RT 3

HSP Max Air Flow Bundle Kit For 2017-2019 Silverado/Sierra 2500/3500-CUST " All This heavier spring will helpThe 693 1 HSP is best known as the Max Air Flow Bundle for the 2017 2019 L5P Duramax equipped Chevrolet and GMC trucks. This bundle kit is the perfect starting point for the person looking to increase their performance, and looks and keep all of your factory emissions in the stock location and working better! What is the Max Air Flow Bundle for the L5P? The L5P Duramax Max Air Flow Bundle is a kit that gives you exactly what you need. What we mean by