MBRP 4" Cat-Back Tour Profile Single Side Exit Exhaust 04.5-05 GM 6.6L Duramax LLY
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- Ships from MBRP Exhaust
Are you looking to maximize your Duramax’s performance? The MBRP Armor Lite Cat-Back Exhaust is built for diesel owners who want more than just a louder truck; they want a better-performing one. By replacing the restrictive factory exhaust, this system improves airflow, helping your Duramax breathe easier, respond quicker, and run more efficiently under load. From towing heavy to daily driving, this exhaust delivers a deeper, more aggressive diesel tone while giving your truck a more responsive throttle feel. It’s a clean, no-nonsense upgrade that improves both how your truck sounds and how it performs without going overboard or breaking the bank.
It is part of MBRP’s Armor Lite series, built from heavy-gauge aluminized steel for a strong balance of durability and affordability. This material offers solid corrosion resistance and long service life when properly maintained. It features 4-inch tubing, which maintains a consistent diameter throughout the system to maximize exhaust flow and reduce restriction. This helps support lower exhaust gas temperatures, improved efficiency, and more consistent performance under load.
Designed as a bolt-on, direct-fit cat-back system, this kit installs using factory mounting locations for a straightforward upgrade with minimal modification required. Built for real-world use, it delivers a reliable combination of performance, sound, and value.
Are you looking to maximize your Duramax’s performance? The MBRP Armor Lite Cat-Back Exhaust is built for diesel owners who want more than just a louder truck; they want a better-performing one. By replacing the restrictive factory exhaust, this system improves airflow, helping your Duramax breathe easier, respond quicker, and run more efficiently under load. From towing heavy to daily driving, this exhaust delivers a deeper, more aggressive diesel tone while giving your truck a more responsive throttle feel. It’s a clean, no-nonsense upgrade that improves both how your truck sounds and how it performs without going overboard or breaking the bank.
It is part of MBRP’s Armor Lite series, built from heavy-gauge aluminized steel for a strong balance of durability and affordability. This material offers solid corrosion resistance and long service life when properly maintained. It features 4-inch tubing, which maintains a consistent diameter throughout the system to maximize exhaust flow and reduce restriction. This helps support lower exhaust gas temperatures, improved efficiency, and more consistent performance under load.
Designed as a bolt-on, direct-fit cat-back system, this kit installs using factory mounting locations for a straightforward upgrade with minimal modification required. Built for real-world use, it delivers a reliable combination of performance, sound, and value.
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.