We used to take our flat-trackers and TT bikes out to the dry lakes north of San Bernardino on the desert where the hot rodders all took their "caps" off, made a lot of noise and went slower, or so everyone said. They then burned their fingers putting the caps back on. I heard "lakers" but "laker pipes" seems out of place. After all, if you know what "lakers" were, you didn't need to add "pipes."
Now I'm sure it's different. I doubt you can go a hundred or so among four-wheelers and picnickers without attracting trouble, and few there have ever seen functional ones, so you have to add "pipes" to set the context.
I guess I'll add "laker pipes" to my vocabulary, but grudgingly.