super shift
#2
after reading the threads/posts/polls here: https://www.hdforums.com/forum/oil-a...ted-topics-30/
I went with Redline (for both primary and tranny). Don't have firsthand experience with "super shift" but there are a lot of AMSOIL fans here
I went with Redline (for both primary and tranny). Don't have firsthand experience with "super shift" but there are a lot of AMSOIL fans here
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