Katech Gen V LT Stage II DI High-Flow Fuel Injectors (Set of 8, 7.5mm)

A set of eight direct injection fuel injectors that flow about 71 percent more than the factory units. Like any injector upgrade they add fuel capacity rather than power, so they are there to feed an engine that has already been built or boosted.

why this one — This is the bigger of Katech's two sets, rated to 1,400 wheel horsepower on gasoline or 1,000 on E85 for $700 more than the Stage I. That headroom is real, but most street trucks will never reach even the Stage I ceiling, so only buy up if your power target genuinely demands it. Same 7.5mm stem, so 2021 and newer heads are out, and a supporting tune is required either way.