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  • Our Testimonials

    • ".....I am just dropping you a letter to let you know how pleased I was with your instant call back and knowledge that you shared on the FASS system I installed on my Duramax....!!!!"
      Mitch KiefferMitch Kieffer
      Mitch Kieffer, Wisconsin, bought a FASS pump
    • Thanks kevin¬† and to everyone at KLM Performance for processing and shipping my rail plug so quick. I will use KLM again in the future
      James PuckettJames Puckett
      Customer - bought Cummins Rail plug
    • WOW !   Customer service far beyond what I have come to expect.   Thanks so much, Dave
      Customer - bought a FASS-T D08 095G system
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