Shorty Header for 2000-2006 GMC Yukon/Sierra Chevy Avalanche/Silverado/Suburban 1500 4.8L/5.3L

Flashark Shorty Header for 2000-2006 GMC Yukon/Sierra Chevy Avalanche/Silverado/Suburban 1500 4.8L/5.3L

Upgrade your 1999-2006 Chevy Silverado, Tahoe, Suburban, Avalanche, or GMC Sierra/Yukon 1500 with 4.8L or 5.3L engines using Flashark high-performance stainless steel headers. Enjoy a deeper, more aggressive exhaust tone, improved throttle response, and up to 20 extra horsepower, plus a slight boost in fuel efficiency.

Fitment:

Specifications:

Brand Name: Flashark
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Material: Stainless Steel
Surface: Mirror Polish
Model: EH28576
Primary Tube Size 1.66"
Head Flange Thickness 7/16"
Outlet Flange Thickness 3/8"
Outlet Size 2.5"
Number of O2 Sensor Locations: 0

NOTE: There is no interface reserved for EGR

Exhaust Headers vs Stock Exhaust Manifolds: GMC/Chevy 4.8L/5.3L

Upgrading the stock exhaust manifolds on your 1999–2006 Chevy Silverado, Tahoe, Suburban, Avalanche, or GMC Sierra/Yukon 1500 with 4.8L or 5.3L engines can unlock hidden potential. Stock manifolds focus on cost and emissions, while performance headers optimize exhaust flow for efficiency and power.

Why upgrade your 4.8L or 5.3L engine?

• Boosted Horsepower & Torque: Headers reduce backpressure, allowing your engine to breathe more freely.
• Improved Throttle Response: Experience quicker acceleration on your Silverado, Sierra, or Yukon.
• Enhanced Exhaust Sound: Achieve a deeper, more aggressive tone without a full exhaust overhaul.
• Slight Fuel Efficiency Gain: Reduced engine strain can lead to better MPG in everyday driving.

Switching to headers is one of the simplest ways to enhance your Chevy or GMC truck’s performance.

Shorty vs Long Tube Headers: GMC/Chevy 4.8L/5.3L

When upgrading your 4.8L or 5.3L Chevy/GMC engine, you have two main header options: shorty or long tube.

Shorty Headers:

• Bolt-on design for easier installation on Silverado, Sierra, Tahoe, Suburban, Avalanche, or Yukon trucks.
• Provide low-to-mid RPM power gains and a noticeable improvement in throttle response.
• Ideal for street-driven trucks seeking better sound and performance.

Long Tube Headers:

• Deliver maximum high-end horsepower, best for racing or heavy-duty towing.
• Require full exhaust modification and professional installation.
• Produce the most aggressive exhaust tone.

For most 4.8L and 5.3L Chevy/GMC owners, shorty headers strike the perfect balance of performance, sound, and installation simplicity.

Why Choose Flashark Shorty Headers?

Flashark shorty headers are engineered specifically for Chevy and GMC 4.8L and 5.3L engines. They combine premium stainless steel construction, a mirror-polished finish, and precision design to boost horsepower, enhance throttle response, and deliver a deeper exhaust tone—all with bolt-on ease. Choose Flashark for a durable, high-performance upgrade that transforms your Silverado, Sierra, Tahoe, Suburban, Avalanche, or Yukon 1500.

Chevy/GMC 4.8L/5.3L Engine Overview

The Chevy 4.8L and 5.3L small-block V8 engines power many popular trucks, including the Silverado, Sierra, Tahoe, Suburban, Avalanche, and Yukon 1500. Known for reliability and strong performance, these engines respond exceptionally well to exhaust upgrades. Installing high-performance headers allows the engine to breathe more efficiently, unlocking added horsepower, torque, and a richer exhaust sound without compromising durability.

FAQ

Q1: Are Flashark headers compatible with my 4.8L or 5.3L Chevy/GMC truck?

A1: Yes! Flashark shorty headers are designed for 1999–2006 Silverado, Sierra, Tahoe, Suburban, Avalanche, and Yukon 1500 trucks with 4.8L or 5.3L engines (except certain 2001–2002 Silverado 5.3L models).

Q2: Will Flashark headers increase my truck’s horsepower?

A2: Absolutely. These headers improve exhaust flow, allowing your 4.8L or 5.3L engine to produce up to 8–20 extra horsepower and more responsive acceleration.

Q3: Can I install these headers myself?

A3: Yes! Flashark shorty headers are bolt-on and compatible with your factory exhaust, making installation straightforward on Silverado, Sierra, Tahoe, Suburban, Avalanche, or Yukon trucks. Professional installation is optional.

Q4: Do Flashark headers improve fuel efficiency?

A4: Yes, optimized exhaust flow can slightly improve fuel efficiency—up to 0.5 MPG under normal driving conditions for 4.8L and 5.3L trucks.

Q5: How do shorty headers compare to long tube headers for my Chevy/GMC truck?

A5: Shorty headers are easier to install and provide low-to-mid RPM gains with a richer exhaust tone. Long tube headers maximize high-end horsepower but require full exhaust modifications and professional installation.

Q6: Are Flashark headers made from high-quality materials?

A6: Yes! Flashark headers are made from premium stainless steel with a mirror-polished finish, offering durability, rust resistance, and high-temperature performance for your 4.8L or 5.3L engine.

Q7: Will these headers fit with my stock catalytic converters?

A7: Yes, Flashark shorty headers are designed to work seamlessly with your factory catalytic converters and exhaust system on Chevy and GMC trucks.

Q8: Will these headers make my truck louder?

A8: Yes, expect a richer and more aggressive exhaust tone on your Silverado, Sierra, Tahoe, Suburban, Avalanche, or Yukon 1500, without needing a full aftermarket exhaust.

Q9: Are Flashark headers street-legal?

A9: Flashark headers are designed for street use and meet general emissions standards, but check local regulations in your state before installation.

Q10: Why should I choose Flashark over other brands?

A10: Flashark combines performance, durability, and style at a competitive price. ISO9001-certified and crafted from premium stainless steel, these headers are a hassle-free, bolt-on upgrade for 4.8L or 5.3L Chevy and GMC trucks.