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  1. Modified JK Tech Dept.
    I had the older Magnuson TVS1320 (got it used for a steal) on my old 2013 JKUR manual trans and it was pretty good with the high altitude pulley and custom (Diablotoona) tune at sea level. This new Magnuson TVS1900 is not CARB certified (yet), but am considering it in lieu of an engine swap...