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Fleece Performance 01-13 GM Duramax 6.6L Duramax PowerFlo 750 CP3 (LBZ/LMM Based)

Marsoni M251S
Sale price$1024.50
Pay 4 payments of $256.12 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Fleece Performance 01-13 GM Duramax 6.6L Duramax PowerFlo 750 CP3 (LBZ/LMM Based)The Fleece Performance Duramax 10mm stroker CP3 is a straight forward, no inflated numbers, CP3 upgrade proven to support 750 RWHP with the proper complimenting modifications. Not only will it support 750 RWHP, but it also eliminates the factory fuel flow restiction that begins at 3,000 RPM. If you have a stock CP3 pump you are losing fuel flow and rail pressure after 3000 RPM, which correlates to lost horsepower when you need it most. This cost
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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4.2 ★★★★★
Based on 2059 reviews
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Patti J Fredley
San Leandro, US
★★★★★ 5
Socks
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
So cute
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
T
Verified Purchase
Tammy Kline
West Palm Beach, US
★★★★★ 5
Perfect Fit!
Size: Medium, Color: Wht
Love these socks. Just the right fit and accurately sized.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
R
Verified Purchase
R. Reid
Birmingham, US
★★★★★ 5
Worth the buy!
Size: Medium, Color: Black
These socks wash well and have lasted us through the year without holes wearing in them. This is actually the 2nd pack we’ve purchased and will definitely buy more when we outgrow these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026
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Verified Purchase
Tyler
Dallas, US
★★★★★ 5
Highly Recommend these as daily socks
Size: X-Large, Color: Black
I love these socks. I’ve been wearing for years. There was a batch I purchased about 2 years ago that all fell apart in the same seam location after 6 months but UA appears to have resolved. I highly recommend.
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Reviewed in the United States on September 22, 2025
J
Verified Purchase
Joseph S. Morris
San Leandro, US
★★★★★ 3
They're ok, miss the resistor 3.0
Size: Large, Color: Black
I bought these because Under Armour stopped making the resistor 3.0 socks. These are fine, but the resistors are better. This model is a little too form-fitting, and I have to make sure they're situated on my toes properly, otherwise they'll sit between my little toe and the next one.
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Reviewed in the United States on June 13, 2025

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