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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.
DummyDuhast
2025-08-18 11:55:45
Very good price, nice part, made in USA. Would definitely purchase this again. Nothing bad to say about this part.
Chris D
2025-06-02 15:33:51
Didn't fit my application and lost 4 quarts of fluid trying to install.
Leslie b.
2025-05-27 12:58:59
Fit as required
robert sylvia
2025-03-07 17:55:13
Worked very Good
Charles
2025-01-25 19:13:07
66 Mustang with c4 automatic fit perfect
Thomas Patterson
2025-01-21 17:36:13
Great adjustable modulator.
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