Holley 550-510-3PD Sniper 2 EFI Returnless Style Drop-In Module - With PDM - 3.5 in. Handheld - POLISHEDReturnless Style Drop In Module With PDM 3. 5 in. Handheld The #1 EFI conversion system just got better! Introducing Sniper 2 EFI a self tuning, easy to install, EFI conversion for common 4 barrel (4150 flange) style carburetors. We took everything that we learned from the original Sniper EFI system and added 14 new features that will make your EFI conversion more simple, reliable, and modern. Like all Sniper EFI systems, Sniper 2 is designed to work

there's no question that you have the hottest performance exhaust on the road - MBRP

It utilizes advanced mPAO synthetic base oils to reduce valve train noise and to provide high temperature and high shear protection for GM LS based engines with and without variable valve timing

It features an increased lift over the original NSR Drift Cam

however you MUST verify you have an L82 or L84 engine

GMC SIERRA 2500 2020+

Installation Notes Recommended intake gasket: Edelbrock #7290

Designed for 6

(1) BTR Rear Main Seal BTR60436

The core of this system is the Eaton Gen VI R2650 TVS rotating assembly with a four-lobe design with 170 degrees of twist for maximum flow

Each set includes 7

It will have a slight lope at idle and drive similar to stock

2M5141 Hastings Rings