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Jet Performance Module Part #21410S Customer Reviews

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1 Customer Review


Reviewed by Jerry M (NEWALLA, OK) Reviewed for a 2014 Chevy Silverado — Dec 17, 2015 7:29 AM

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Love my Jet PCM. If adjusting the transmission shift timing was the only adjustment, it would be more than worth the purchase.Typical of all Chevy's, my truck shifted hard. Well, not anymore, it shifts so smooth now that most of the time I can't tell when it shifts. Absolutely awesome. I installed a K&N Cold Air Intake and MagnaFlow Exhaust System. I could feel the additional HP with each performance part. It has really made my Chevy a joy to drive.

Jet Performance Module - 21410S

Stage 2 PCM
  • $132.99 - $299.99
    • On Sale: 18% Off
  • $109.05 - $245.99
  • Free Shipping
  • Ships Between 4/26 - 4/30
  • What Do You Drive?


  • Part #:
  • Requires 91 octane fuel, performance exhaust and 180° thermostat

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