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Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 1
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 2
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 3
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 4
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 5
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 6
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 7
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 8
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 9
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 10
Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB photo 11
SPELAB

Black 4.0" Downpipe-Back Exhaust for 2007.5-2010 LMM 6.6L Duramax | SPELAB

MPN: SPJN-EXS22-00002008
Tow Pig
$469.99
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---tab Description---

2007.5-2010 LMM 4" Downpipe-Back Exhaust Overview

Unleash the true potential of your 2007.5-2010 LMM 6.6L Duramax with our Black Downpipe-Back DPF Delete Pipe. Engineered for the serious enthusiast, this system is designed to optimize exhaust flow, reduce restrictive back pressure, and deliver a noticeable boost in performance and sound. Crafted from durable 409 stainless steel and featuring a stealthy black powder coat combined with a high-performance titanium heat wrap, it's built to withstand the toughest conditions while giving your truck an aggressive, custom look. Perfect for off-road and competition use where DPF systems are not required.

Black Downpipe-Back Exhaust Key Features

Enjoy outstanding fuel economy enhancement after installation of 4.0" downpipe-back exhaust sysytem. It effectively improves overall engine operating efficiency, optimizes fuel consumption and helps you cut down daily fuel costs easily.

Black Powder Coating for Heat and Corrosion Protection

• High-Temperature Protection : Advanced coating technology provides superior resistance against extreme exhaust temperatures.

• Enhanced Corrosion Resistance : Protects against rust and environmental elements, ensuring longevity and durability.

• Improved Aesthetics: Delivers a sleek, aggressive black finish that enhances your truck's underbody appearance.

Black Titanium Heat Wrap for Head Pipe Heat Control

• Reduced Underbody Heat Radiation: Significantly lowers heat transfer to critical underbody components, protecting nearby hoses, wiring, and fuel lines from heat damage.

• Extreme Temperature Endurance: Withstands temperatures exceeding 1000°C (1832°F), ensuring reliability in demanding conditions.

• Optimized Exhaust Flow: Prevents heat soak and maintains exhaust gas velocity, contributing to improved engine efficiency and power delivery.

⚠ Off-Road Use Only – DPF removal is illegal for on-road vehicles in most regions. For competition/racing use only.

Product Specifications

• Material: Premium 409 Stainless Steel

• Finish: High-Temperature Black Powder Coating

• Heat Management: Black Titanium Heat Wrap on Head Pipe

• System Type: Downpipe-Back DPF Delete

• Application:

Designed for Downpipe-back systems, ideal for high-temperature environments, towing, heavy loads, performance-tuned vehicles, and off-road use.

• Durability: Built to enhance exhaust system robustness and impact resistance.

Installation Guide

Install takes about 1hr with basic hand tools done on the ground of your driveway or garage. Quicker if you have automotive style lift. Cutting may be be required to fit shorter wheelbase bed/cab configurations. Clamps, hangers and hardware are included. You may have to re-use some factory hardware.

Tuner Required for DPF Delete Exhaust Installation

Removal of the DPF, CAT, SCR, and/or DOC involves removing and eliminating emission related sensors. A DPF delete capable tuner is required to prevent any check engine light or diagnostic trouble codes from setting.

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LMM Duramax Downpipe-Back Exhaust Fitment

Fits Cab/Box Configurations: EC-CC/SB-LB-Dually. Compatible with:

• 2007 Chevrolet Silverado / GMC Sierra 2500HD / 3500HD 6.6L LMM Duramax Diesel

• 2008 Chevrolet Silverado / GMC Sierra 2500HD / 3500HD 6.6L LMM Duramax Diesel

• 2009 Chevrolet Silverado / GMC Sierra 2500HD / 3500HD 6.6L LMM Duramax Diesel

• 2010 Chevrolet Silverado / GMC Sierra 2500HD / 3500HD 6.6L LMM Duramax Diesel

---tab Shipping & Returns---

Fast Shipping Policy

Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy

Easy Return Policy

Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy

Warranty
Warranty based on supplier terms

SPELAB Auto Parts: 1 year from delivery; supplier conditions apply. SPELAB offers a one-year limited warranty from delivery for material/workmanship defects under normal use, original purchaser only, with proof of purchase. Consumables, wear/cosmetic damage, improper installation, alteration, misuse and removal/installation labor are excluded. Approved remedies are repair, replacement or replacement parts at SPELAB’s discretion.

Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

SPELAB Auto Parts warranty policyView complete warranty

Product conditions

Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Return eligibility
SPELAB allows return requests within 30 days of delivery, with authorization and undamaged goods, original packaging and accessories. Tuners are final sale. Customer pays voluntary return shipping; original shipping is not refunded. SPELAB pays return shipping for approved damaged, incorrect or manufacturing-defective items. Transit damage must be reported within two business days and incorrect items within seven days. Based on what SPELAB Auto Parts offers.
Return window
Not stated for this product; see supplier terms
Restocking fee
See supplier terms; no product-specific fee stated
Return shipping
Based on the supplier’s return policy; see terms
Made to order
No
Backorder status
Not backordered
Cancellation
Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
Warranty provider
SPELAB Auto Parts
Warranty duration
1 year from delivery; supplier conditions apply
Compatibility
Listed for specific vehicle configurations
Legal use
Street legal
Processing estimate
3–10 business days supplier processing
Shipping
Shipping calculated at checkout
Signature
No signature requirement
Supplier
SPELAB Auto Parts

Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.