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has anybody put a throttle body spacer on their truck or is that defeating the purpose of upgrading the throttle body.
I think some people have, but I doubt is does anything other than make your intake sound neat. I'm not sure if it would adversely effect the upgrade or not.
I have the Air raid throttlebody on my 2004 ram 1500 with the 4.7, same engine i believe, and it works wonders with about a 15hp increase if I remember the testing, as well as -2 or -3 mpg.