Stainless Works 2019+ Chevrolet Silverado 5.3L Catted Headers 1-7/8in Primaries 3in Leads Y-Pipe - sswCT19HCATY

Transform the sound and performance of your 2019–2021 Chevrolet Silverado 1500 or GMC Sierra 1500 5.3L V8 with the Stainless Works Long Tube Headers featuring high-flow catalytic converters and a 3" Y-pipe. Engineered for maximum power gains and an aggressive exhaust note, this system offers a significant upgrade over restrictive factory manifolds.

These long tube headers feature 1-7/8" CNC mandrel-bent primaries that optimize airflow and improve engine efficiency, feeding into 3" slip-fit collectors and high-flow cats. The system flows into a 3" lead pipe and Y-pipe assembly, designed to connect directly to the factory cat-back exhaust using a Factory Connect configuration — making installation straightforward without cutting or modifying your stock exhaust system.

Crafted from durable 304 stainless steel, the headers are TIG welded for maximum strength and built to withstand the rigors of high-performance use. Each system is manufactured in Stainless Works’ facility in Streetsboro, Ohio, with a focus on craftsmanship, durability, and precision fitment. Whether you're towing, daily driving, or building a street-performance truck, this system delivers noticeable improvements in throttle response, torque, and deep exhaust tone.

Key Features:

• 1-7/8" Mandrel-Bent Primary Tubes – For maximum exhaust flow and power gains

• Long Tube Header Design – Improves mid-to-high RPM performance

• High-Flow Catalytic Converters – Enhances exhaust velocity for improved output

• 3" Slip-Fit Collectors and Lead Pipes – Streamlined design for smooth flow

• 3" Y-Pipe Crossover – Efficiently merges exhaust for balance and sound

• Factory Connect Configuration – Direct connection to OEM cat-back system

• 304 Stainless Steel Construction – Corrosion-resistant and built to last

• TIG Welded for Strength – Precision construction for long-term durability

• Made in the USA – Manufactured in Ohio with American materials

• Limited Lifetime Warranty – Coverage on material and craftsmanship

Fitment:

• Chevrolet Silverado 1500 5.3L V8 (2019–2021)

  • Custom

  • LT

  • LTZ

  • High Country

  • SSV

  • WT

• GMC Sierra 1500 5.3L V8 (2019–2021)

  • Base

  • SLE

  • SLT

  • Denali

Upgrade your Silverado or Sierra with the Stainless Works Catted Long Tube Headers and experience true performance, bold sound, and lasting American-made quality.