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A6Pilot · 11-02-2007, 02:14 PM

The dirty little secret with K&N filters is that the perceived horse power is not backed up by real, independently verifiable increases, except (maybe) at the absolute upper reaches of the rpm band. And any small increases, if any at all, are at the expense of filtering power. See this:

Why do you suppose these fanatical Japanese engine designers (or Corvette, or Ferrari, for that matter) do not specify a K&N system for their powerplants? Expense has nothing to do with it.

Sorry to say, but they just don't work in the real world. Not only that, but there's a good chance you actually decrease power, and decrease the longevity of your engine. On the other hand, they look neat, all shiny and everything. Bling vs bang, once again.

Next, let's talk about performance chips, Vornados, etc, etc. P. T. Barnum is alive and well!

Finally, consider this:

11-02-2007, 02:14 PM	#15 (permalink)
A6Pilot Registered User Join Date: May 2005 Location: Evergreen, CO Posts: 418	The dirty little secret with K&N filters is that the perceived horse power is not backed up by real, independently verifiable increases, except (maybe) at the absolute upper reaches of the rpm band. And any small increases, if any at all, are at the expense of filtering power. See this: Why do you suppose these fanatical Japanese engine designers (or Corvette, or Ferrari, for that matter) do not specify a K&N system for their powerplants? Expense has nothing to do with it. Sorry to say, but they just don't work in the real world. Not only that, but there's a good chance you actually decrease power, and decrease the longevity of your engine. On the other hand, they look neat, all shiny and everything. Bling vs bang, once again. Next, let's talk about performance chips, Vornados, etc, etc. P. T. Barnum is alive and well! Finally, consider this: