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The matched ports and merged runner design reduces exhaust backpressure
resulting in extended life of the cooler
If you can get a Brand New Injector
The kit includes as standard 3/4" U-bolt as a significant upgrade over the strength of the factory 5/8"
Diamond Eye 4" Aluminized Cat-Back Single Outlet Exhaust with Turbo Direct Pipe 04.5-05 LLY Duramax Options:Diamond Eye Muffler The matched ports and mergedUpgrading your exhaust in your LLY Duramax is possibly the most popular upgrades a diesel enthusiest will do. Upgrading exhaust not only aids in power, fuel economy, and overall sound, but it also looks really cool. This 4" Aluminized Cat Back kit from Diamond Eye is an excellent upgrade for your LLY Duramax. This kit also includes an upgraded turbo direct pipe that features CNC machined end forms for precise fit, mandrel bent tubing for smoother flow
