Mark Houlahan
Tech Editor, Mustang Monthly
February 1, 2005

The '03-'04 Cobra has to be the most talked about, lusted after, and compared Mustang that has come down the assembly line in quite some time. Honestly, the car deserves it. While there's not a single person on staff here who can afford one, those who can are the envy of Mustang enthusiasts everywhere. Just hearing that Eaton blower whine on a race track, autocross, or dyno gets us salivating.

But as great as the car is, there are always improvements to be made. Being true Mustang power mongers, we aren't satiated for long by the factory 390 hp. So what comes next? A pulley and a chip or handheld computer tune are at the top of the list for most of us. Now that we think about it, we don't know of a single '03-'04 Cobra owner who doesn't have a 2.8 pulley, a ported blower, or a Kenne Belle blower to increase boost. When you have increased boost such as that, it's nice to know just what your blower enhancements are worth. But the stock boost gauge reads to only 10 pounds, so what can you do? You could install an aftermarket boost gauge, but if you like to keep things low-key, there's a new product that you'll love.

Livernois Motorsports sent us one of its Hilton Boost Gauge Overlays to try out. The overlay (PN LIV-OVERLAY; $29.95) is installed over the stock boost gauge, and the gauge needle is modified to allow full boost readings. It's an easy upgrade that looks factory and can be installed in less than an hour by simply removing the gauge cluster for working room. Check out the installation on our friend Shawn Downey's black '03 Cobra, which sports a DiabloSport 2.8 pulley, a Steeda blower-belt tensioner and cold-air kit, and a DiabloSport Predator tune.

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