3-Inch Downpipe with Passenger-Side Up-Pipe for 2004.5–2010 GM 6.6L Duramax LLY/LBZ/LMM

Description

Fitment

• 2004.5-2010 Chevrolet Silverado & GMC Sierra 2500 & 3500HD 6.6L Duramax pickup trucks.
• Will not fit Cab & Chassis trucks.

Description

Upgrade your 2004.5-2010 Chevy GMC 6.6L Duramax (LLY, LBZ, LMM) with our premium 3” stainless steel downpipe—engineered for performance, durability, and an aggressive deep sound. Built to resist corrosion and harsh conditions, it’s the ideal upgrade for diesel enthusiasts.

This 3” downpipe eliminates restrictive factory parts, reducing backpressure to unlock hidden horsepower and torque. It delivers a bold, throaty note without being overly loud, perfect for daily driving or towing.

Key Features

Premium T201 Stainless Steel
Superior corrosion resistance and durability for long-lasting use in extreme conditions.

3” Maximum Flow
Minimizes backpressure, boosting horsepower, torque, and fuel efficiency.

Aggressive Sound
Deep, rich tone that stands out without being excessive.

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