6.7l On the down pipe at the elbow where it turns down and back to the rear it is expanded like a emission component. is this so or can it be...
I recently purchased an 07.5 3500 srw 4x4 longbed with the 6.7L. My milage sucks it is at best 10 to 11 mpg. The truck has 2000 miles and the fuel...
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