I bought a 2007 Dodge Ram Quad Cab. The little V8 (should have ponied-up for the Hemi, I know - but I am married). I installed Flowmaster and K&N Cold-Air Air cleaner, but there must be something missing. I am just not seeing the power that I expected, and now I even get a strange whistle from the air cleaner (yes, mostly expected - but not desired).Anyway, should I get a chip, too? Is there some particular chip that I should look for?