My car came with a rear sway bar...just need funds for an upgrade.
I'm averaging 26mpg with about 75% freeway driving and a heavy foot in town.
For $8 you might as well put the plugs in and try them. If you don't like them you can just put stock replacements back in it. The power is a little smoother with the plugs but I'm sure that's the case with any new plugs.
Autolite 103's, Cosworth CAI, FRPP Suspension, Strut Bars, DIY Short Shifter, SVT Air Dam, BSD, Poly Trans Mount, Borla 2.5", Roush Wheels, Tune...