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Description
2011-2016 LML CP3 Conversion Kit with PowerFlo 750Why convert your LML's Fuel System from a CP4 to a CP3? The stock CP4 is only capable of supporting up to ~500 RWHP. A CP3K is capable of supporting 600+ RWHP in conjunction with the piezoelectric injectors. The reliable and proven PowerFlo 750 is capable of supporting nearly 850+ RWHP. The CP4 was introduced as a cost reduction to the LML platform since a smaller amount of fuel is required when running the more efficient piezoelectric injectors.
Why convert your LML's Fuel System from a CP4 to a CP3?
- The stock CP4 is only capable of supporting up to ~500 RWHP. A CP3K is capable of supporting 600+ RWHP in conjunction with the piezoelectric injectors. The reliable and proven PowerFlo 750 is capable of supporting nearly 850+ RWHP.
- The CP4 was introduced as a cost reduction to the LML platform since a smaller amount of fuel is required when running the more efficient piezoelectric injectors. Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms.
The Fleece CP3 Kit contains:
- High Pressure Fuel Rail Line
- Fuel Rail Plug and Nut
- CP3 Block Adapter with O-ring
- (3) CP3 Block Adapter Bolts (Flange Head, M8x1.25x35mm)
- CP3 Pump Fittings – 3/8”
- CP3 Pump Fittings – 1/2"
- (2) Sealing Washers
- Low Pressure Fuel Feed Line –
- 3/8”x8” Flexible Fuel Line with Hose Clamps (CP3 Return)
- 1/2”x30” Flexible Fuel Line with Hose Clamps (Filter to CP3)
- 3/4” P-Clamp
- Fuel Return Line Block Off with O-ring
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 4
Color and fit
Love the suit style. But the color wasn't what I expected. Was to be beige but appear to be more on a light pink. Also the fit was on the small size due to my awkward body size. Seller went beyond to solve my issue by having suit replace with a different color and adjusted size to fit. No questions asked. I was very satisfied.
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Reviewed in the United States on December 8, 2023
★★★★★ 5
Great suit, I'm gonna order more!
Bought this suit for a funeral and felt really sheek and unique. The buckle on the wrist and the right side really adds an impeccable fit and makes a sharp statement for anyone slim or chub. Worth the try if even a one time buy!
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Reviewed in the United States on March 19, 2026
★★★★★ 1
sizing
Size: Medium, Color: Champagne
It was too big it runs big
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Reviewed in the United States on January 19, 2026
★★★★★ 5
Nice price and good quality
Size: Large, Color: P1553-navy
I really like the zipper feature on this shirt. It looks sharp on, and is sized accurately. The fabric is comfortable and wrinkle resistant. It is nicely priced for the quality of the shirt. I was well pleased with it.
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Reviewed in the United States on June 20, 2025
★★★★★ 5
Perfect for Business Casual
Size: X-Large, Color: P1553-purple
The shirt was a huge hit at my husband’s job. Perfect color in the logo for the company. He immediately asked me where I ordered the shirt from. I suspect his colleagues will be ordering as well.
Shirt quality and comfort are ideal in our July Tennessee weather. He loved the overall fit since it was perfect for his broad shoulders.
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Reviewed in the United States on July 16, 2025