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3.5'' Downpipe Exhaust For 2017-2023 Duramax Diesel L5P 6.6L | Suncent®

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SKU: 7817EMD0018US
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Quantity

Brand
Suncent®
Fitment
2017,2018,2019,2020,2021,2022,2023 Chevrolet Silverado & GMC Sierra 2500 & 3500HD 6.6L Duramax pickup trucks. Will not fit Cab & Chassis trucks.
Material
Stainless Steel
Surface
Mirror Polish

Quality Materials and Construction: 3.5" Stainless Steel Construction, thermal Coated & Heat Wrapped, Oxidation resistant, high strength, High temperature resistant.

Enhanced Performance: The 3.5'' downpipe exhaust is designed to improve the performance of engine. It enhances exhaust flow, resulting in increased horsepower and torque, and improved throttle response.

Reduced Turbo Lag: Helps minimize turbo lag, allowing for quicker spool-up and improved acceleration. You'll experience enhanced throttle response and a more enjoyable driving experience.

Compatibility and Direct Fit: It meets or exceeds the OEM standard, and has been tested in the factory, perfectly matched with the original car, and can be installed directly.

 

Title

3.5" Catless Downpipe For 2017-2025 Silverado/Sierra 2500 3500 HD 6.6L L5P Duramax Diesel V8 By Suncent®

Advantages of a catless downpipe
All-New Acceleration Experience
A cat-deleted exhaust system can simultaneously boost torque and reduce weight, delivering a significant acceleration improvement—shortening the 0-60 mph acceleration time by approximately 0.3-0.4 seconds.
Faster Turbo and Throttle Response
By removing the catalytic converter, exhaust backpressure is dramatically reduced and hot gases no longer accumulate in the turbo housing. This lowers the turbocharger’s operating temperature, cutting turbo lag and throttle response time by approximately 10–15%.
Improved Fuel Economy
By reducing exhaust backpressure, more air enters the combustion chamber, significantly enhancing fuel combustion efficiency and increasing fuel mileage by up to 5%. Whether for daily driving or track competition, it delivers more economical performance.
Deep, Resonant Exhaust Note
At idle and low RPM, the mid-to-low frequency rumble becomes richer and more robust. A light tap of the throttle unleashes a powerful turbo whistle and sharp exhaust bursts.
Reduced Failure Rate
The catalytic converter is a wear-prone component. By removing it, the exhaust system is simplified, effectively lowering the likelihood of failures.
Application

2017-2025 GMC Sierra 2500 3500 HD

2017-2025 Chevrolet Silverado 2500 3500 HD

2017+ 6.6L L5P Duramax Diesel V8

Why remove the catalytic converter?
After removing the catalytic converter, exhaust gases can be discharged from the turbo more freely, effectively reducing heat buildup and lowering the turbo's operating temperature. At the same time, exhaust backpressure is significantly reduced, markedly improving engine intake efficiency—while gaining more torque and horsepower, fuel combustion becomes more complete. This allows you to fully unleash the passion of ultimate performance on the track, while also saving considerable fuel costs.
WARNING
FOR RACING USE ONLY
NOT LEGAL FOR USE IN THE U.S. ON PUBLIC ROADS
CLEAN AIR ACT NON‑COMPLIANT.

NOT LEGAL FOR USE ON ANY PUBLIC ROADS OR HIGHWAYS IN THE UNITED STATES.

USE ON U.S. PUBLIC ROADS OR NON‑SANCTIONED RACING IS STRICTLY PROHIBITED.

  • Legal use is limited to OFFICIALLY SANCTIONED COMPETITION VEHICLES.
  • Compliance with LOCAL EMISSIONS AND ENVIRONMENTAL LAWS is the sole responsibility of the end user. Improper use may result in FINES, PENALTIES OR VEHICLE NON COMPLIANCE.

4.84/5
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