2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) a Day
Difficulty Level:
Mechanical expertise or professional installation required.
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Stainless Works 1-3/4-Inch Headers with Catted Y-Pipe; Factory Connect (03-06 2WD 4.8L, 5.3L Sierra 1500)Find parts that fit my vehicle
Item S513489
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Our Price
$2,290.45 set
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Designed to Increase Horsepower, Torque, and Throttle Response
- Provides Moderate Volume and Aggressiveness
- Long Tube Headers
- High-Flow Catalytic Converters Included
- Y-Pipe with Factory Connector Included
- 1-3/4 Inch Primary Tubes and 2-1/2 Inch Collector
- Durable T-304 Stainless Steel
- For Off-Road Use
- Not CARB Certified
- Computer Retune Not Required
- Fits 2003 to 2006 2WD 4.8L and 5.3L Chevrolet Silverado Models
| Brand | Stainless Works |
| Headers Type | Headers & Mid-Pipe Kit |
| Header Primary Size | 1.50-1.75 Inch |
| Header Collector Size | 2.50 Inch |
| Header Finish | Raw |
Description
Dramatically Improves Performance. This Stainless Works 1-3/4 Inch Headers with Catted Y-Pipe is specially designed to replace the restrictive factory headers. It features a free-flowing design that utilizes mandrel-bent pipes for optimum exhaust flow that boosts power and performance. Additionally, the included Y-Pipe is compatible with the stock exhaust.
Aggressive Exhaust Note. The Stainless Works 1-3/4 Inch Headers with Catted Y-Pipe is designed to emit a race-inspired growl with moderate volume and aggressiveness. This can be combined with a separately purchased Stainless Works exhaust for the ultimate growl.
High-Flow Catalytic Converters. This kit comes with a set of cats that are less restrictive than the factory catalytic converters. The high-flow design help in maintaining the increased airflow for improved horsepower and torque.
Durable T-304 Stainless Steel Construction. The 1-3/4 Inch Headers with Catted Y-Pipe is made from high-grade stainless steel to ensure toughness and durability. The precise CNC laser-cut flanges and mandrel-bent tubes ensure a precise fit for straightforward installation.
No Tune Required. The 1-3/4 Inch Headers with Catted Y-Pipe is precision designed to work without any retune. However, a retune after installation is recommended to ensure the best possible performance from the Silverado.
Not CARB Certified. The 1-3/4 Inch Headers with Catted Y-Pipe is not CARB certified. It is not intended for use in California or any state that adopted California emission standards.
Application. The Stainless Works 1-3/4 Inch Headers with Catted Y-Pipe is designed to fit 2003 to 2006 2WD 4.8L and 5.3L Chevrolet Silverado models.
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Fitment:
DetailsStainless Works CT03052WD
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Header Assembly
- (1) Catted Y-Pipe
- Installation Hardware
4.5
Reviews of Stainless Works Exhaust Products (82)
Reviews of Stainless Works Exhaust products have an average rating of 4.5 out of 5
Questions & Answers
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Will It Fit My Sierra 1500
- 4.8L V8 - 03, 04, 05, 06
- 5.3L V8 - 03, 04, 05, 06
