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1991 Ford Mustang Underdrive Pulleys

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BBK Underdrive Pulley Sets Reviews

1991 5.0 gt drop top

Reviewed By Oscar G (Manteca, CA) Reviewed for a 1991 Ford Mustang —10/26/2013 9:18 PM

put these on about 1 week ago n felt a lil more horse power at the start. the appearance looks really good in the engine bay. i did add on cold air intake, throttle body. 3.73 gears n ac delete kit so that also made a huge increase on horse power. overall happy with the pulleys though.

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