1974 Scamp some assembly required

Got the TTI headpipes installed. Thanks @318willrun for the video! It sold me. The passenger side jumped on all by itself.
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Might have to clearance for the idler arm a little.20190429_195831.jpg 20190429_195837.jpg
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The driver side was a little trouble. In and out a few times to make some room for the pitman arm.
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All said and done, they fit pretty well they only took a couple hours to put on. I for the life of me don't know why TTI won't just make these all the way in 2.25 inch. I think they would fit a lot better. What's the advantage to using 2.5 inch pipe? You're using exhaust manifolds, how much better could they flow at 2.5?