Originally Posted by 370Zsteve

Imma let a little cat out of the bag

In a couple of months, one of the tuner mags is gonna have a rundown of each individual intake/exhaust mod. A shop I deal with did the testing. They took each individual component (CAI, HFC, CBE), installed it on a 370Z and dyno'd the vehicle. Each component was dyno'd separately.

A can tell you this: HFC's provided the most gain out of all 3 components.