iceguyb14
Mustang Fanatic
Made a video about the underdrive pulleys I had on my 2010. They definitely provided some solid gains and I never made a video about them like I should have so I figured why not now lol. 05-10 guys with the 4.6 who don't have them should seriously consider them. I gained 9whp and 8wtq on the same dyno 45 minutes apart which isn't bad for the $220 pulleys. And at the track my ET came down over a tenth and my mph went up almost 2mph.
Anyway check out the video!
EDIT: Also should mention I didn't have any negative effects from the pulleys either. Car still drove like normal, had cold A/C, power steering felt the same, and the alternator worked fine.
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