4-inch DPF delete race pipe for 2017-2022 GMC Sierra/Chevrolet Silverado 2500/3500 HD with 6.6L Duramax L5P engine – stainless steel construction for maximum flow and off-road performance

4" DPF & CAT Delete Race Pipe For 2017-2022 6.6L Duramax L5P Chevy GMC 2500 3500

$279.99

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Quantity

82 in stock, ready to ship

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Description

Product Overview

The 4" DPF & CAT Delete Race Pipe is engineered for 2017-2022 GMC Sierra 2500/3500 HD and Chevrolet Silverado 2500/3500 HD (Crew Cab Short Bed & Long Bed) equipped with the 6.6L Duramax L5P diesel engine. Designed for off-road performance and competition use, this T-409 stainless steel race pipe eliminates the need for DPF/CAT maintenance while enhancing exhaust flow, reducing backpressure, and unlocking significant power gains when paired with an ECU remap.

Ideal For

Vehicle Owners of 2017-2022 L5P 6.6L Duramax-powered GMC Sierra 2500/3500 HD and Chevrolet Silverado 2500/3500 HD (Crew Cab configurations).
Off-Road Enthusiasts & Competitors seeking optimized exhaust flow for maximum power and torque.
DIY Mechanics looking for a 1-hour installation with basic tools (or faster with a lift).
Emission-Restriction-Free Use (non-road/commercial applications only).

Merchant Return Policy

Dispatch Time: Orders will be shipped within 24 hours after successful payment.
Delivery Time: 2-5 business days after dispatch (delivery speed depends on proximity to warehouse location).
Return Window:7 days for unsatisfactory items45 days for quality-related issues
Refund Processing: Refunds will be processed back to your original payment method within 2-4 business days after receiving the automated refund confirmation email (subject to bank verification).

Shipping Details

Houston TX

Package List

4" DPF & CAT Delete Race Pipe
OEM-Style 4-Bolt Flange Assembly
OE-Compatible Hangers & Hardware Kit
Installation Clamps and Fasteners
Mounting Brackets (reuses some factory hardware)

FAQ

Frequently Asked Questions (FAQ) - SEO Optimized

Compatibility & Fitment

Q: Which vehicles is this DPF & CAT Delete Race Pipe compatible with?
A: This 4" race pipe fits 2017-2022 GMC Sierra 2500/3500 HD and Chevrolet Silverado 2500/3500 HD (Crew Cab Short Bed & Long Bed) equipped with the 6.6L Duramax L5P diesel engine. Not compatible with 3500/4500/5500 Cab & Chassis commercial trucks.

Q: Will this work with my 2018 Silverado 2500HD Crew Cab Long Bed?
A: Yes, it’s designed specifically for Crew Cab Long Bed configurations within the 2017-2022 model range. For shorter wheelbase setups, minor cutting may be required during installation.

Installation & Setup

Q: How long does installation take?
A: Installation typically requires ~1 hour using basic hand tools. Using an automotive lift can speed up the process. Some cutting may be needed for shorter wheelbase/cab configurations.

Q: Do I need special tools or a tuner?
A: Basic tools are sufficient, but a DPF-delete-capable tuner is mandatory to disable emission sensors and prevent check engine lights/DTCs. Factory hardware may be reused for some components.

Performance & Benefits

Q: What performance gains can I expect?
A: By reducing exhaust backpressure and increasing flow, this race pipe enhances horsepower/torque when paired with ECU remapping. It also eliminates DPF/CAT-related maintenance costs and failure risks.

Q: Is this legal for road use?
A: This product is designed for off-road/competition use only (non-road/commercial applications). Always check local emissions regulations before installation.

Technical & Durability

Q: What material is used? Will it rust?
A: Constructed from T-409 stainless steel, this pipe resists corrosion for long-term durability in harsh conditions.

Q: Does it include all necessary hardware?
A: The kit includes clamps, hangers, and mounting hardware, though some factory components may need to be reused. OEM-style 4-bolt flanges and OE-compatible hangers ensure easy fitment.

Maintenance & Reliability

Q: Will I still need DPF cleaning/replacement?
A: No. This race pipe removes the DPF/CAT entirely, eliminating recurring maintenance costs and potential failure-related repairs.

Q: How does it improve engine reliability?
A: By removing restrictive DPF/CAT systems, it reduces exhaust backpressure, enhancing engine efficiency and preventing costly diesel repairs from DPF system failures.

Delivery Time

2-5 working days inland in the United States

Installation Guide

Core Advantages

Performance Boost

Reduces exhaust backpressure, increasing flow for improved engine efficiency and power output.
When combined with ECU tuning, delivers measurable gains in horsepower and torque.

Maintenance & Reliability

Eliminates DPF/CAT-related service costs (cleaning, replacement, or failure-induced repairs).
Prevents costly diesel repairs from DPF system failures.

Durability & Design

Crafted from corrosion-resistant T-409 stainless steel for long-term reliability.
OEM-style 4-bolt flange and OE-compatible hangers ensure seamless fitment.
Maximized flow design tailored for competition applications.

Technical Specifications

Material: T-409 Stainless Steel
Inlet Diameter: 4.0"
Flange Style: OEM 4-Bolt Straight Pipe
Hanger System: OE-style hangers for easy installation
Flow Design: Maximum flow optimized for off-road/competition use
Emission Compliance: Suitable for non-road/commercial applications only (removes catalytic converter and DPF filter).

Why Choose This Race Pipe

Tuner Compatibility: Requires a DPF-delete-capable tuner to disable emission sensors and prevent check-engine lights/DTCs.
Installation Simplicity: Installs in ~1 hour with basic tools (faster with a lift). Minor cutting may be needed for shorter wheelbase configurations.
Complete Hardware Kit: Includes clamps, hangers, and hardware (some factory hardware may be reused).
Cost Efficiency: Avoids recurring DPF maintenance and potential failure-related expenses.

Complete Package Contents

4" DPF & CAT Delete Race Pipe
OEM-Style 4-Bolt Flange Assembly
OE-Compatible Hangers & Hardware Kit
Installation Clamps and Fasteners
Mounting Brackets (reuses some factory hardware)

Compatibility List

Fully Compatible

2017-2022 GMC Sierra 2500/3500 HD (L5P 6.6L Duramax)
2017-2022 Chevrolet Silverado 2500/3500 HD (Crew Cab Short Bed & Long Bed, L5P 6.6L Duramax)