Quote:
Originally Posted by bchatt
Umm....please explain  |
Well they aren't so much about the effect such as a resonant airbox has, but more about disrupting the returning wave when it is out of phase (ie revs too low for pipe to be working in synch with the engine). Talking to tuners about it they have said that both in dyno & on SW sim packages, that you can change the pipe when the chamber is open & have no real effect on the power. That sort of indicates that they are not working to 'make the pipe appear longer' or whatnot, but merely disrupting the negative effects of the pipe when revs are too low.
That isn't to say that that chamber isn't too small std to create enough of a disruption & absorb the returning waves, but I am dubious about any bolt on item that is easy to machine & market yet strangely could be easily incorporated into next years model but the factory ignores it. Hmmm. . . Maybe they don't have the internet or after market manufacturers in Spain. . .