Dorman 674-522 Exhaust Manifold Kit Driver Left Side New for 1999-2020 Chevrolet GMC Avalanche LH | SPELAB

Exhaust Manifold for 1999-2020 Chevrolet GMC Driver Side Dorman 674-522 | SPELAB

Replacing or upgrading your exhaust manifold is necessary for both engine performance and sound. Whether on or off the track, the exhaust manifold provides more horsepower and improved exhaust sound. 

 

Fitment:

• 1999-2020 Chevrolet GMC General Motors 4.8L 5.3L 6.0L 6.2L 
• Part Number: ‎101261; 663017; 12556078; 12562235; 12562330; 12564155; 12571678; 12602037; 12610962; 12616285; 12686303

 

Specifications:

Brand Name: SPELAB
Certificate: ISO9001:2000
Application: Automobile Exhaust Manifold
Material: Stainless Steel

 

Features:

• Tubular manifold design with better exhaust flow and delivers more top-end power
• Equal-length runners for balanced exhaust reversion and enhanced turbo performance
• Mandrel bent pipes to maintain the free flow
• Head flanges flattened by a hydraulic press to ensure a leak-free seal
• Chrome plating on flanges to increase corrosion resistance and surface hardness
• All joints TIG welded for great resistance against cracking and wearing