Pay in installments of $400.88 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Fleece Performance 11-16 GM 2500/3500 Duramax LML CP3 Conversion Kit w/HD CP3Experience enhanced fuel delivery for your 2011 to 2016 GM 2500 and 3500 Duramax LML trucks with the Fleece Performance CP3 Conversion Kit. This kit includes a heavy duty CP3 injection pump specifically engineered to improve injection performance and fuel control, making it ideal for enthusiasts seeking increased power and reliability. The Fleece Performance CP3 Kit is designed for seamless installation, replacing the factory pump with minimal
Experience enhanced fuel delivery for your 2011 to 2016 GM 2500 and 3500 Duramax LML trucks with the Fleece Performance CP3 Conversion Kit. This kit includes a heavy-duty CP3 injection pump specifically engineered to improve injection performance and fuel control, making it ideal for enthusiasts seeking increased power and reliability.The Fleece Performance CP3 Kit is designed for seamless installation, replacing the factory pump with minimal modifications required. Built with durability in mind, this kit supports the demands of high-performance builds, providing consistent fuel pressure and flow. Whether you're upgrading your truck for towing, racing, or daily performance, this component delivers trustworthy power enhancements.
Trust the Fleece Performance brand for quality and innovation in fuel system components. Each kit is crafted to meet or exceed OEM specifications, ensuring long service life and optimal engine performance. Benefit from Tuningsupply's commitment to fast shipping and transparent pricing when you choose this fuel injection solution for your Duramax LML engine.
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
4.8 ★★★★★
Based on 12 reviews
Sort
Product Reviews
★★★★★ 5
Very Comfortable
Size: 9, Color: Chestnut, Size: 9, Color: Chestnut
Good quality and very comfortable. Sizing is accurate.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 4
Cute - change footbed please
Size: 8.5, Color: Dense Smoke
These are so comfy and fit my usually 8.5 foot great. It's the footbed of UGGs that I keep hoping they'll change. It's like our memory foam mattress - cushy and great UNTIL THE HEAT comes! Then it's a no for this hot 65 yo G'ma!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 3
No me quedaron
Size: 8, Color: Dense Smoke
No son del # vienen más pequeños
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 5
Super fun!
Size: 8.5, Color: Red Pepper
These are so fantastic! The color is amazing! It is a bit on the tomato-red side of the color-wheel. The fit is great. They are comfortable from the 1st step. Easy to walk in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 5
Nice so far.
Size: 6.5, Color: Molasses
Comfy. They were tight the first day across the toes but as I've worn them a couple times they are loosening up. The sole is forming to my foot. These are very much like Doc Martin's from the early 2000s. Not sure about quality since I haven't had them for very long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026