L&D Diesel LLC · Thomasville, North Carolina · Veteran Owned and Operated
Beyond
Factory.
Built for the L5P.
High quality parts and services, backed by dependable customer support. Built in our own bay in Thomasville, North Carolina.
Fits 2017–2026 Chevy Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD — 6.6L Duramax L5P.
Free shipping $150+
Shipped from Thomasville, NC
Diesel-Only
We don't dabble
30-day returns
Tech Support
Talk to a wrench
Veteran Owned and Operated
L&D Diesel LLC
// Shop by System
Pick Your Upgrade
// Featured
On the Bench
2017-2026 6.6L GM Duramax L5P Downpipe Back Single Exhaust
$685.00
L5P EGR Upgrade Kit
$400.00
2015-2019 GM 2500/3500HD CTS2/3 Monitor Mount
$65.00
DieselR 3.5" Downpipe - 2017–2026 Duramax L5P
$335.00
2020-2023 GM 2500/3500HD CTS2/3 Monitor Mount
$65.00
2024+ GM 2500/3500HD CTS2/3 Monitor Mount
$65.00
5/8" Hose Separators - 3 Pack
$8.99
HPT GM E41 ECM Upgrade Kit - ECM-00-L5P-K
$199.99
// From the Bay
Real Trucks, Real Work
// Straight from the Shop
Builds, reels,
and shop days.
"I am a one man band just trying to make a name for myself. Currently specializing in L5P performance modifications."
— Straight from our Facebook
// The Code
Shop-built.
Truck-proven.
We're a small shop in Thomasville, North Carolina that got tired of babying failure-prone factory parts. Every kit we sell gets built, bolted on, and beat on in our own trucks before it ships in yours.
Read the Manifesto