2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax Exhaust Upgrades

FREE SHIPPING ON ALL
ORDERS OVER $70

PRICE MATCH GUARANTEE

BUILD NOW, PAY LATER
FINANCING OPTIONS

30-DAY RETURN SATISFACTION GUARANTEE

DIESEL TRUCK EXPERTS STANDING BY

Availability
Manufacturer
Make
Model
Year
Price
$0
$2,094.23
Rating
Loading products...
Filter
90 products
Sort by:
Best selling
Availability
Manufacturer
Make
Model
Year
Price
$0
$2,094.23
Rating
Pypes EVT410 4 inch Inlet 10 inch Outlet Polished Monster Exhaust Tip | Universal
Pypes EVT410 4 inch Inlet 10 inch Outlet Polished Monster Exhaust Tip | Universal

Pypes

Pypes EVT410 4 inch Inlet 10 inch Outlet Polished Monster Exhaust Tip | Universal

Price
$81.97
PPE 117021520 T304 Stainless Exhaust Tip with Black Finish for Factory Exhaust Systems | 2015-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 117021520 T304 Stainless Exhaust Tip with Black Finish for Factory Exhaust Systems | 2015-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 117021520 T304 Stainless Exhaust Tip with Black Finish for Factory Exhaust Systems | 2015-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$89.99
MBRP T5075 5 inch Inlet 6 inch Outlet Angled Rolled-End Stainless Steel Exhaust Tip | Universal
MBRP T5075 5 inch Inlet 6 inch Outlet Angled Rolled-End Stainless Steel Exhaust Tip | Universal

MBRP Exhaust

MBRP T5075 5 inch Inlet 6 inch Outlet Angled Rolled-End Stainless Steel Exhaust Tip | Universal

Price
$89.99
Wehrli 100129 3.5 inch Down Pipe | 2017-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100129 3.5 inch Down Pipe | 2017-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100129 3.5 inch Down Pipe | 2017-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$324.95
MBRP T5073 6 inch OD Angled Rolled End 4 inch Inlet 12 inch Length Exhaust Tip - T304 Stainless Steel | Universal
MBRP T5073 6 inch OD Angled Rolled End 4 inch Inlet 12 inch Length Exhaust Tip - T304 Stainless Steel | Universal

MBRP Exhaust

MBRP T5073 6 inch OD Angled Rolled End 4 inch Inlet 12 inch Length Exhaust Tip - T304 Stainless Steel | Universal

Price
$94.99
MBRP M2220A Quiet Tone Exhaust Muffler 5 inch Aluminized Steel | Universal
MBRP M2220A Quiet Tone Exhaust Muffler 5 inch Aluminized Steel | Universal

MBRP Exhaust

MBRP M2220A Quiet Tone Exhaust Muffler 5 inch Aluminized Steel | Universal

Price
$249.99
MBRP T5074BLK 5 inch Inlet 6 inch Outlet Angle Cut Double-Wall Stainless Exhaust Tip - Black | Universal
MBRP T5074BLK 5 inch Inlet 6 inch Outlet Angle Cut Double-Wall Stainless Exhaust Tip - Black | Universal

MBRP Exhaust

MBRP T5074BLK 5 inch Inlet 6 inch Outlet Angle Cut Double-Wall Stainless Exhaust Tip - Black | Universal

Price
$119.99
MBRP T5074 5 inch Inlet 6 inch Outlet Angle Cut Double-Wall Stainless Exhaust Tip - Polished | Universal
MBRP T5074 5 inch Inlet 6 inch Outlet Angle Cut Double-Wall Stainless Exhaust Tip - Polished | Universal

MBRP Exhaust

MBRP T5074 5 inch Inlet 6 inch Outlet Angle Cut Double-Wall Stainless Exhaust Tip - Polished | Universal

Price
$99.99
Wehrli 100199 Up Pipe Bolt Kit | 2017-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100199 Up Pipe Bolt Kit | 2017-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100199 Up Pipe Bolt Kit | 2017-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Price
$58.20
MBRP T5165BLK 5 inch Hexagon Shaped Black Series No Back Plate Exhaust Tip | Universal
MBRP T5165BLK 5 inch Hexagon Shaped Black Series No Back Plate Exhaust Tip | Universal

MBRP Exhaust

MBRP T5165BLK 5 inch Hexagon Shaped Black Series No Back Plate Exhaust Tip | Universal

Price
$139.99
MBRP T5129BLK 8 inch Rolled End Exhaust Tip - Black | Universal
MBRP T5129BLK 8 inch Rolled End Exhaust Tip - Black | Universal

MBRP Exhaust

MBRP T5129BLK 8 inch Rolled End Exhaust Tip - Black | Universal

Price
$184.99
MBRP T5127 7 inch OD Angled Rolled End 5 inch Inlet 18 inch Length Exhaust Tip - T304 Stainless Steel | Universal
MBRP T5127 7 inch OD Angled Rolled End 5 inch Inlet 18 inch Length Exhaust Tip - T304 Stainless Steel | Universal

MBRP Exhaust

MBRP T5127 7 inch OD Angled Rolled End 5 inch Inlet 18 inch Length Exhaust Tip - T304 Stainless Steel | Universal

Price
$154.99

2020-2025 6.6L Silverado & Sierra 2500HD/3500HD

Upgrade the style, sound, and performance of your 2020-2025 GM 6.6L Duramax L5P with our premium selection of aftermarket exhaust systems here at Alligator Performance. These street-legal and off-road exhaust kits are designed to replace your restrictive factory exhaust components, allowing your engine to breathe easier for improved efficiency. Many of these kits even deliver noticeable gains in both horsepower and torque without the need for extra tuning, giving you an immediate performance boost that you can feel. Beyond power, these exhaust systems add an aggressive tone to your GM Sierra/Silverado 2500HD/3500HD, making every throttle press a heart-pounding experience. Choose from single-exit kits, dual-exit kits, up-pipes, downpipes, and universal exhaust tips to completely transform your truck's exhaust system. And be sure to also check out some additional Engine Upgrades and Intake Upgrades to get even more out of your 6.6L Duramax. GM Duramax Fitments: 2020, 2021, 2022, 2023, 2024, 2025 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

Can We Help You Find Something?

Give us a call: +1-208-719-7400

THE GARAGE

The Garage

Welcome to The Garage – your one-stop shop for all your car care and maintenance needs. From premium oils and filters to top-notch car care products, we have everything you need to keep your vehicle running smoothly and looking its best. Whether you're a DIY enthusiast or a professional mechanic, our carefully curated selection of high-quality products will help you take care of your ride like never before.