80lb / 850cc Pontiac G8 / GXP LS3 Fuel Injectors – NEW High‑Performance 2008–2010 | SouthBay

Unlock maximum fueling capability in your Pontiac G8 / GXP LS3 (2008–2010) with SouthBay’s brand‑new 80lb / 850cc high‑performance fuel injectors. Designed for high‑boost turbo systems, supercharged builds, aggressive cam packages, and full E85 conversions, these injectors deliver the precise fuel volume required for serious LS3 power.

These are 100% NEW injectors — not rebuilt — engineered with stainless‑steel internals for long‑term durability under extreme temperature and pressure. Every set is dynamically flow‑matched to ensure consistent AFR, smooth idle, and reliable performance during aggressive tuning.

Perfect for high‑horsepower street cars, drag builds, and fully‑built LS3 engines demanding accurate, high‑volume fuel delivery.

Performance Features:

• True 80lb/hr (≈850cc/min) flow rate for LS3 applications

• Brand‑new injectors (NOT remanufactured)

• High‑impedance design compatible with factory & standalone ECUs

• Stainless‑steel internal components for maximum durability

• Compatible with pump gas, E85, and race fuels

• Flow‑matched set for consistent AFR and smooth drivability

• Supports turbo, supercharged, nitrous, and high‑RPM builds

• Includes new O‑rings and seals

Pontiac — G8 / GXP (LS3 6.0L / 6.2L)

• 2008 Pontiac G8 GT

• 2009 Pontiac G8 GT

• 2009 Pontiac G8 GXP (LS3)

• LS3‑based swaps requiring 80lb/850cc injectors

• Suitable for NA, supercharged, turbocharged, and E85 builds