No, stickerpower is lame.
Thing is, by fitting the JLT Cold Air intake and the Magnaflow manifold-back replacment (and getting a tune), my buddy’s 03 Cobra went from 373hp at the rear wheels to 410 at the rear wheels as proven on a dyno. Others have reported greater gains.
Just joking
I heard a big Mopar sticker gives cars a 15hp boost.
=)