throttle body spacer

[JonnyBlaze]

I have a TBS, came on it when I bought it. I know you can get em pretty cheap on ebay.

 

[LameSuburbanDad]

any change you make short of dropping thousands of dollars is only going to net you 0.?% gains. I added a tuner, Gotts mod, K&N filter, MAS, T.B. spacer, under drive kit, and gaind about 20-30 h.p. which is not a real substantial gainf or a vehicle this size and this heavy.
will you notice it at first in the peddle? absolutely. at the gus pump, not so much. even if you drive a lot on the highway with your cruise control on the whole way, etc etc your only going to see about a .5 to 2 mpg increase.
what I noticed the most from my mods was the tuner, it really firms up the trans and makes it shift at better points for quicker starts and longer power runs.
the T.B. spacer just kinda whistles, it may help the fuel air mix a little bit but just that, a little.