I'm looking for the best (and cost efficient if possible) way to increase air intake velocity at the throttle body of a late model LS V8 engine.

I see there are companies that have specially designed throttle bodies (like the JET Powr-Flo Throttle Body) that have dyno proof that their throttle body increases air velocity... If anyone know of companies other than Jet to look at for this, please let me know.

Another option I've seen is throttle body spacers which should do the same thing to increase incoming air velocity even though they sit behind the throttle body.

Anybody have any recommendations for a good spacer that increases velocity?

Just wanted to get some recommendations from those that have done what I'm looking to do... increase incoming air velocity - Thanks!

 

And, the folks at Jet claim their JET Powr-Flo Mass Air Sensor provides "airlow increases of up to 45%".... can a mass air sensor do this?

If so, are there any other options other than Jet to consider?