Originally Posted by honeycutt.dewey

go to autostone, you can get a brand new pair for 100 bucks...
a good way to tune up is new oil, filter, air filter, plugs, wires, and a can of seafoam.
i disagree with your choice of plugs terravast. i've asked several people, including outlaw class guys, shops, tuners, and dealership employees and they all say that the delco iridium is the best plug for ls motors. part number 41-110 i believe. and the stocker plug wires seem to work better than most as well.
btw the ls1 and ls3 use the same style coils as the 4.8, 5.3, and 6.0. the ls2 and ls7 are different