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MBRP 4-Inch Cat-Back Exhaust Tour Profile Single Side Exit 01-04 GM 6.6L Duramax LB7
MBRP Exhaust

MBRP 4-Inch Cat-Back Exhaust Tour Profile Single Side Exit 01-04 GM 6.6L Duramax LB7

MPN: S6001P
Daily DriverTow PigStreet Performance
$664.99
Ships From Supplier · Ships in 3–7 business days
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Fitment sensitive
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Are you looking to give your Duramax a horsepower boost and the sound it should have from the factory? The MBRP Armor Lite Cat-Back Exhaust is built for truck owners who want a noticeable upgrade in both sound and performance. By opening the exhaust flow, this system helps your engine breathe easier, resulting in improved throttle response, lower exhaust temperatures, and a deeper, more aggressive tone. Whether you’re towing, daily driving, or just want your truck to feel more alive, this exhaust delivers a clean, no-nonsense upgrade that hits the sweet spot between performance and value. It’s one of those mods you’ll hear and feel every time you hit the throttle.

It is built from heavy-duty aluminized steel, making it a cost-effective option that still delivers solid durability and long service life. The system features aluminized steel 4-inch tubing, which maintains a consistent diameter throughout the exhaust for maximum flow and efficiency. Designed as part of MBRP’s Armor Lite series, this exhaust is engineered to handle daily use while keeping costs lower than those of stainless options. It includes precision-fit components and a bolt-on design, allowing for a straightforward installation using factory mounting points. The result is a well-built system that balances performance, durability, and affordability, perfect for truck owners who want real gains without overspending.

Warranty
Warranty based on supplier terms

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 warranty

Product 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.