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SKU: 49-44086-P | UPC: 802959600931
aFe Large Bore-HD 4in 409-SS DPF-Back Exhaust w/Dual Polished Tips 2017-2019 GM Duramax V8-6.6L (td) L5P
Upgrade your 2017-2019 Chevrolet Silverado or GMC Sierra 2500HD 3500HD Duramax L5P diesel with the aFe Power Large Bore-HD 4-inch DPF-back exhaust system. This mandrel-bent 409 stainless steel exhaust delivers maximum exhaust flow for gains in horsepower torque and reduced EGTs while producing an aggressive dual-exit sound. It converts the factory single exhaust to dual rear side exit with no spare tire relocation required and installs using factory mounting points for a direct bolt-on fit.
Key Features
- Mandrel-Bent 4" 409 Stainless Steel Tubing: Provides smooth uninterrupted flow to reduce backpressure increase power and improve throttle response across the RPM range
- Dual 6" Polished Slash-Cut Tips: High-luster 304 stainless steel tips with laser-cut aFe Power badge deliver deep tone and eye-catching style that complements heavy-duty trucks
- OE-Style Bayonet Hangers and Band Clamps: Ensures precise alignment stability under high heat and vibration using factory locations for long-lasting fit without rattles
- Single to Dual Exhaust Conversion: Transforms stock single pipe setup into aggressive dual rear side exits boosting performance and stance without cutting or welding
- Spare Tire Compatible: Designed to clear the factory spare tire location perfectly maintaining full bed usability on work trucks
Product Notes
- Fits all cab configurations with no modifications to emissions equipment or drivetrain components
- High-temperature black powder-coated components resist corrosion in harsh conditions
- Oversized heavy-duty packaging protects tubing and tips during transit
Installation Notes
- Professional installation recommended.
- Bolt-on design uses all factory hangers with included driver-side tailpipe support bracket
- Complete hardware kit provided no drilling or cutting required 2-3 hour install time
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2019 | Chevrolet | Silverado 2500 HD | High Country LT LTZ WT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | High Country LTZ WT |
| 2017-2019 | GMC | Sierra 2500 HD | Base Denali SLE SLT |
| 2017-2019 | GMC | Sierra 3500 HD | Denali SLE SLT |
Why Choose aFe Power?
- Engineered specifically for Duramax L5P applications with dyno-tested flow gains
- 409 stainless steel construction balances durability strength and affordability
- Direct-fit precision from OE-style components ensures reliability on daily drivers and heavy haulers
Frequently Asked Questions
-
Q: Will this exhaust fit my 2018 Silverado 2500HD L5P with spare tire?
A: Yes it fits perfectly without relocating the spare tire or modifying the frame using factory mounting locations -
Q: What material is used and how durable is it?
A: Mandrel-bent 409 stainless steel tubing with 304 stainless tips and high-quality band clamps resists rust and withstands diesel truck abuse for years -
Q: What is the warranty and install process?
A: Backed by aFe Powers limited lifetime warranty bolt-on installation takes 2-3 hours with all hardware included no tune required
Shipping & Handling
- Method: Ground shipping via freight carrier for oversized items
- Availability: In stock - ships same or next business day
- Packaging: Ships in one heavy-duty oversized box 50in L x 20in W x 20in H
- Weight: 68 lbs
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