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Throttle Body Spacer Question

2370 Views 16 Replies 10 Participants Last post by  primetime
I was just wondering what exactly the throttle body spacer does.
It claims it gives 2-4 mpg as well as 5 hp....any truth behind this?

If anybody has purchased one, what are your feelings about it?

1 - 1 of 17 Posts
I have one and it works great. Little but noticeable powerand a little better on mpgs. It just spins the air coming in, into a vortex, which explains the whistling sound.
1 - 1 of 17 Posts
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