mando28 Posted August 31, 2015 Report Share Posted August 31, 2015 Ok guys so I got a tbss intakeanifold with fuel rails and injectors. I'm still not sure if I'm going with 87mm throttle body or 90mm My question is What parts would I need to install it on my 2003 silverado SS Would I need different parts if I decide to go with 90mm? Would it be more expensive than if I went with an 87mm?? Quote Link to comment Share on other sites More sharing options...
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