AFE Large Bore-HD 4" 409 Stainless Steel DPF-Back Dual Exhaust 2016 GM 6.6L Duramax LML
Race / competition use only
This product is not legal for use on public roads or on pollution-controlled vehicles. By purchasing, you confirm it will be used only for off-road / race purposes and that you are responsible for lawful use.
Emissions-related component. Race/competition use only — not legal for use on public roads or on any pollution-controlled vehicle.
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
Select your truck to continue
Ships directly from the supplier. The final shipping cost will be shown before payment.
- Ships from aFe Power
So you’re looking for a new DPF-Back exhaust for your GM Duramax? You’re in luck because you’ve stumbled upon the perfect combination of performance, fit and value for your GM Duramax. aFe’s Large Bore-HD 4” 409 Stainless Steel DPF-Back Exhaust System is constructed from 4" mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. By using all factory mounting locations and a bolt-on bracket that supports the driver side tailpipe, this provides for a quick, hassle-free installation with no modification necessary. Other features and benefits include:
Single To Dual Exhaust Conversion:
This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust.
Fits With Spare Tire:
This exhaust system fits perfectly without relocating the spare tire.
OE Fit:
OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time.
Flow and Performance:
This Large Bore-HD exhaust system is constructed from 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s.
Your choice in tip finish:
• 6” Polished Tips: Dual high luster, polished 304 stainless steel slash-cut tips. This tip features a laser-cut stainless steel aFe power badge for an aggressive style.
• 6” Black Tips: Dual powder-coated high temp black 304 stainless steel exhaust tips. This tip features a laser-cut stainless steel aFe power badge for an aggressive style.
So you’re looking for a new DPF-Back exhaust for your GM Duramax? You’re in luck because you’ve stumbled upon the perfect combination of performance, fit and value for your GM Duramax. aFe’s Large Bore-HD 4” 409 Stainless Steel DPF-Back Exhaust System is constructed from 4" mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. By using all factory mounting locations and a bolt-on bracket that supports the driver side tailpipe, this provides for a quick, hassle-free installation with no modification necessary. Other features and benefits include:
Single To Dual Exhaust Conversion:
This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust.
Fits With Spare Tire:
This exhaust system fits perfectly without relocating the spare tire.
OE Fit:
OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time.
Flow and Performance:
This Large Bore-HD exhaust system is constructed from 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s.
Your choice in tip finish:
• 6” Polished Tips: Dual high luster, polished 304 stainless steel slash-cut tips. This tip features a laser-cut stainless steel aFe power badge for an aggressive style.
• 6” Black Tips: Dual powder-coated high temp black 304 stainless steel exhaust tips. This tip features a laser-cut stainless steel aFe power badge for an aggressive style.
Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Diesel Power Products warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Race / competition use only. Not legal for sale or use on pollution-controlled vehicles or on public roads. Emissions-related component. Race/competition use only — not legal for use on public roads or on any pollution-controlled vehicle.
- Return eligibility
- Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products 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
- Diesel Power Products
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Competition use only
- Processing estimate
- 3–7 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- Diesel Power Products
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.