Throttle body spacers?
Senior Member
Joined: Oct 2016
Posts: 425
Likes: 40
No they have no benefit on port or direct injected motors. They are the biggest scams in the automotive world.
the few exceptions to this was on older carbureted and throttle body injected motors where fuel was being injected at the manifold opening. Some times increasing the space between the TBI unit or Carb would allow for better fuel atomization and distribution into the intake runers.
So basicly it's worthless on any car or truck built in the last 20 years. And think about it for a second. If making the manifold neck longer would have added extra performance don't you think ford would have done it from the factory.
the few exceptions to this was on older carbureted and throttle body injected motors where fuel was being injected at the manifold opening. Some times increasing the space between the TBI unit or Carb would allow for better fuel atomization and distribution into the intake runers.
So basicly it's worthless on any car or truck built in the last 20 years. And think about it for a second. If making the manifold neck longer would have added extra performance don't you think ford would have done it from the factory.
