I think headers are probably the best single bolt on mod you can do.

Get a set of MSDS and never look back.

99 Cougar V6 MTX...Plenty of mods My best mod thus far: Trans: Brand New MTX-75 with B1 gear set, Quaife LSD, 4.5 Final Drive, Spec Stage 1 Clutch, Spec Aluminum Flywheel...