They're pretty much for looks. I just wanted to share that this Speedmaster intake fit great on the LA, and the truck 2bbl linkage worked with minimal modifications. I'll soon be bolting one on the 5.9 magnum and I expect a good fit as well. I'm glad I bought these intakes, and I wouldn't mind a couple more laying around for the black Friday price :)
*Also, with the aluminum intake I'd guess the truck would be about 3500-3520 lbs
