LS swaps are everywhere, and builders constantly need good electronic fuel injection (EFI) systems that deliver power without becoming a wiring nightmare.

FiTech Fuel Injection just dropped its latest answer for LS1, and LS3 fans: the new Nitro-Port LS EFI System. This complete package pairs their proven EFI technology with a new intake manifold designed for easy horsepower and smooth drivability right out of the box.

FiTech designed these kits to make EFI conversions less intimidating while handling serious performance goals. Builders can pick systems rated for 500, 750, or a hefty 1,000 horsepower, matching the fuel supply to their engine build. FiTech also offers flexibility for transmission choices, providing kits both with and without electronic transmission control capabilities.

The heart of the kit is FiTech’s new Nitro-Port cast-aluminum intake manifold. It’s a low-profile piece featuring short runners specifically designed to help LS engines breathe better and make power at higher RPM.

Thoughtful features include built-in -8 AN fuel rails, ready-for-performance injectors, and even a pre-drilled port perfect for adding a nitrous or water/methanol injection nozzle later.

The intake accepts popular 92mm and 102mm throttle bodies, plus drive-by-wire units. FiTech placed vacuum ports and the Manifold Absolute Pressure (MAP) sensor location at the rear for a cleaner look for your engine bay.FiTech intends this Nitro-Port system as a true plug-and-play solution. Each kit bundles the intake manifold (specific to either LS1 or LS3 heads) with the FiTech Electronic Control Unit (ECU), a complete wiring harness, all necessary engine sensors like MAP, IAT (Intake Air Temperature), and CTS (Coolant Temperature Sensor), crucial dual wideband O2 sensors for accurate tuning, and their easy-to-use touchscreen handheld controller for initial setup and adjustments.

So, if you’re stuffing an LS1 or LS3 into your muscle car or building a serious track machine, getting the fuel and tuning right is very important. FiTech’s Nitro-Port LS EFI system looks like a solid, all-in-one solution. It’s carefully engineered to handle big power while aiming to simplify the often tricky EFI conversion process for these popular LS, and LS3 engines.