Is an intake manifold an important part of a performance LS build? The answer is, obviously, yes. One need only realize that the peak power difference between the least and most powerful intakes in this shootout was more than 60 hp. Imagine that, an intake swap that yielded 60 extra horsepower, but that isn’t the whole story. While peak power gains offer enticing Internet banter, changes in the entire power curve are the real story. That is why we are also including average power production from 3,000 to 7,000 rpm, torque production at 4,000 rpm, cost, throttle opening, runner length, composition, and even what we liked and might change on each design. In short, this was the most extensive LS intake manifold test ever devised.
Though we know you have…