Questions like these belong in the
Windsor Power Forum, which is where I'm transferring this topic. You'll receive more responses there, too.
I also suggest doing a search on this topic.
However, if I remember correctly, the Exploder intakes use an external EGR tube that attaches to the exhaust manifold...er mebbe it's the later Mustang 5.0's. Don't know this for sure, but that's the way I remember it. The lower intake numbers seem to be okay, but are you SURE the upper is an XL??? I thought only Ford's experimental and/or prototype stuff was encoded this way(?).
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Capri306, Moderator, The Mustang Works Online
"PROUD TO BE AN AMERICAN!!!"