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Fleece Performance Engineering is a customer-centric diesel performance company that specializes in the development and manufacturing of innovative and extremely forward-thinking products to improve upon the performance and reliability of your Cummins, Duramax, or Powerstroke. Originally operating from a shop on their family farm, they have now grown to a full-scale operation that excels in air and fuel-related components for light-duty diesel. A continuous focus on product quality and the creation of new design principles before the competition is what keeps Fleece Performance growing by leaps and bounds year after year and at the forefront of the winners circle. Many know Fleece for its line of Cheetah Turbos, PowerFlo Lift Pumps, and 10mm Stroker Pumps, but it goes far beyond! From the simple, yet widely popular exhaust manifold stud kits that eliminate the troublesome factory manifold hardware to full-blown race engines via their Freedom Racing Engines division, they are truly a "one-stop shop!" And no, Fleece isn't "just" for the hot rod diesel market, they've got kits and components for every level of diesel truck owner.
TIMELINE OF FLEECE PERFORMANCE ENGINEERING:As always, if you have any questions about which Fleece turbo, fuel, engine, or other product is right for you, do not hesitate to give us a call and we would be happy to assist.
Overall rating: 4.875 / 5 from 8 reviews.
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"I installed 50 HP injectors & a larger turbo 63 mm cheetah , it's not a crazy build . having head studs is great insurance and peace of mind I highly recommend these head studs for builds up to 650 HP If your looking for more HP above 650 , I'm pretty sure you want the 625's ARP head studs"
"Definitely recommend Fleece studs with 12 point nuts. Helps in hard to reach places and allows you to tighten the nuts down properly."
"The studs were a big help . The placement of the exhaust gaskets and repositioning the manifold to the block were made a lot easier because of the studs."
"Nice compliment to the new manifold. I figured I would do both in one shot. . . Only minor issue was 11 of the 12 were internal hex. . . and one was external. Not a huge deal but definitely not ideal."
"These made the install so much easier. I'd use them again."
"Ok"
"This kit was a perfect way to bolt up a new exhaust manifold. Quality fasteners. A++"
"Good product no problems"
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