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Your cart is empty.Rostra Precision Controls, Inc. is the Original Equipment manufacturer of vacuum modulators. Rostra Modulators are the highest quality in the industry. Complete and universal, problem solving designs, function perfectly the first time, every time.
SwagMaster420
Reviewed in the United States on May 17, 2023
I like that it is adjustable. It shifts fine stock but being able to adjust the shift timing to slower or faster is a nice bonus.
Danny R.
Reviewed in the United States on May 20, 2020
Chevy venture vanRt part thank
Jared Black
Reviewed in the United States on April 6, 2018
Worked as described, and less than half price from a local auto shop store.
adrien morin
Reviewed in the United States on October 25, 2016
works very well
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