[ModMech]

The straight scoop is that the MM airbox (and required reprogramming of the PCM) WILL definately add more than 3 RWHP, I have seen as much as 12 RWHP. On your '00 CVPI the programming STINKS, so you should see 12ish RWHP if not a little more.

Now, it is MY opinion, that anyone who wants to improve performance of a FORD product needs the PCM blessed by the folks at "SCT". That said, on YOUR car, if you want the most bank for the buck, find an '01 or newer wrecked Mustang or CV/GM and get the intake manifold off it, and install it (with your OLD gaskets!) onto your engine. For about $20, and 1/2 days labor you will add 10-13 RWHP to your car. Yup, that simple. If you have SCT "bless" your PCM, then you will see *up to* a 25 RWHP gain at 6000 RPM (remember that that number is deceiving because with the stock intake power falls off FAST over 5300 RPM). You definately SHOULD do the MM airbox mod if you replace the intake, but it is not REQUIRED, and may be done at a later date with no ill affects.

I installed a 4" CAI on my '99 CVPI which had superior programming, and it really did not do anything on the dyno. Neither did installing a NEW factory oiled K&N. In fact, I lost 1 RWHP for doing it.