MBRP 4" Cat-Back, Tour Profile, Single Side Exit Exhaust 06-07 GM 6.6L Duramax LLY
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- Ships from MBRP Exhaust
Are you looking to improve the sound and performance of your Duramax? The MBRP Armor Lite Cat-Back Exhaust is built for diesel owners who want a real upgrade you can hear and feel. By replacing the restrictive factory exhaust, this system helps your Duramax breathe easier, unlocking a deeper, more aggressive diesel tone while improving throttle response and overall drivability. Whether you’re towing, daily driving, or just want your truck to sound like it should have from the factory, this system delivers a clean, noticeable upgrade without overcomplicating the build. It’s the perfect balance of performance, sound, and value, giving your Duramax a more refined exhaust note and a freer-flowing setup that improves how the truck behaves under load.
It is part of MBRP’s Armor Lite series, built from heavy-duty aluminized steel to deliver solid durability at an affordable price point. This material is designed to handle everyday driving conditions and moderate climates while resisting corrosion when properly maintained. It features 4-inch mandrel-bent tubing, ensuring consistent diameter throughout the system for maximum exhaust flow and reduced restriction. This helps improve efficiency under load and smoother overall engine performance.
Designed as a bolt-on, direct-fit cat-back system, the system installs using factory hangers and mounting points for a straightforward upgrade with no fabrication required. Built specifically for the Duramax platform, it’s a proven entry-level exhaust upgrade that delivers a strong combination of sound, performance improvement, and affordability.
Are you looking to improve the sound and performance of your Duramax? The MBRP Armor Lite Cat-Back Exhaust is built for diesel owners who want a real upgrade you can hear and feel. By replacing the restrictive factory exhaust, this system helps your Duramax breathe easier, unlocking a deeper, more aggressive diesel tone while improving throttle response and overall drivability. Whether you’re towing, daily driving, or just want your truck to sound like it should have from the factory, this system delivers a clean, noticeable upgrade without overcomplicating the build. It’s the perfect balance of performance, sound, and value, giving your Duramax a more refined exhaust note and a freer-flowing setup that improves how the truck behaves under load.
It is part of MBRP’s Armor Lite series, built from heavy-duty aluminized steel to deliver solid durability at an affordable price point. This material is designed to handle everyday driving conditions and moderate climates while resisting corrosion when properly maintained. It features 4-inch mandrel-bent tubing, ensuring consistent diameter throughout the system for maximum exhaust flow and reduced restriction. This helps improve efficiency under load and smoother overall engine performance.
Designed as a bolt-on, direct-fit cat-back system, the system installs using factory hangers and mounting points for a straightforward upgrade with no fabrication required. Built specifically for the Duramax platform, it’s a proven entry-level exhaust upgrade that delivers a strong combination of sound, performance improvement, and affordability.
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.
- 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
- Street legal
- 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.