Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
HPT L5P ECM Upgrade (*Original ECM Required*)GM E41 ECM Services (L5P) GM E41 ECM Upgrade No "Replace ECM" function No crank relearn No IMMO relearn This Part Fits: Year Make Model Submodel 2021 2022 Chevrolet Silverado 2500 HD Custom 2017 2022 Chevrolet Silverado 2500 HD High Country 2017 2022 Chevrolet Silverado 2500 HD LT 2017 2022 Chevrolet Silverado 2500 HD LTZ 2017 2022 Chevrolet Silverado 2500 HD WT 2017 2022 Chevrolet Silverado 3500 HD High Country 2017 2022 Chevrolet Silverado 3500 HD
GM E41 ECM Services (L5P) - GM E41 ECM Upgrade
- No "Replace ECM" function
- No crank relearn
- No IMMO relearn
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2022 | Chevrolet | Silverado 2500 HD | Custom |
| 2017-2022 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2022 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2022 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2022 | Chevrolet | Silverado 2500 HD | WT |
| 2017-2022 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2022 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2022 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2022 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2022 | GMC | Sierra 2500 HD | AT4 |
| 2017-2021 | GMC | Sierra 2500 HD | Base |
| 2017-2022 | GMC | Sierra 2500 HD | Denali |
| 2022 | GMC | Sierra 2500 HD | Pro |
| 2017-2022 | GMC | Sierra 2500 HD | SLE |
| 2017-2022 | GMC | Sierra 2500 HD | SLT |
| 2020-2022 | GMC | Sierra 3500 HD | AT4 |
| 2017-2021 | GMC | Sierra 3500 HD | Base |
| 2017-2022 | GMC | Sierra 3500 HD | Denali |
| 2022 | GMC | Sierra 3500 HD | Pro |
| 2017-2022 | GMC | Sierra 3500 HD | SLE |
| 2017-2022 | GMC | Sierra 3500 HD | SLT |
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
4.2 ★★★★★
Based on 1789 reviews
Sort
Product Reviews
★★★★★ 5
Great value
Size: X-Large, Color: White
Excellent fit. Great value and very comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
★★★★★ 5
Men's Mock Turtleneck T-shirt
Size: Medium, Color: White
I'm happy with the shirt, it was as advertised. Thanks for the fast service
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
★★★★★ 4
I always like turtlenecks
Size: X-Large, Color: Black
Very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2025
★★★★★ 5
Mark T T-shirt
Size: XX-Large, Color: White
I’m content nice quality good price works for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
★★★★★ 5
I like the shirt and the price was decent
Size: X-Large, Color: Black
Nice but I don’t like it on my neck. I’m giving it away as a gift.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2025
recommand products
3 Pairs Amass XT90H XT90 Wire XT 90 Plug Male and Female Connector 150mm 10AWG Silicon Wire for RC Lipo Battery FPV Racing Drone
17.95
Acid-Washed Ribbed Short Sleeve Boat-Neck Top (Turquoise)
28.00
KRIDDO Kids Tricycle - White Sport, Carbon Steel, Large, Ages 2-4 Years, Toddler Trike for 2.5 to 5 Year Olds
86.30
Delilah Leopard Print Pleated Sleeve Blouse (Grey)
52.95
MIEBELY McLaren Remote Control Car, 1/12 Scale, 7.4V 900mAh, Green, Fast 12km/h, Ideal Gift for Kids Age 6
78.00