yea 15.98 something like that , I'd be interested to see how much of a difference it made
When I took my LS to K&N, to verify the fit, function and (I thought) emissions of the FIPK so they could add the LS to their application catalog, they gave me a free system (they, as did Magnaflow, gave me free system for the use of my LS). They also replaced my filter with a new one as I already had the FIPK installed on the car. I had the system sitting in the box in the garage for over a year as I wasn't sure if I wanted to install it on my wife's LS or sell it. A couple of months ago I drove our cars back-to-back and the difference in power was noticeable. The next day I installed the FIPK on my wife's LS and saved the stock system for smog checks.