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Modifications to the Stock 2001GT


Air Intake System

  • Two modifications have been made to the air intake system. I installed a high efficiency K&N air filter and removed the air intake silencer cone. The air filter, (catalog number E-0945), was $48 at Checker Auto Parts and was a very simple install. The removal of the silencer boot was also quite simple and created a considerably larger aperture for air flow into the air filter's chamber. Mustang enthusiasts feel that these two modifications can result in an improvement of 5-8 horsepower.

        K&N Air Filter

        Silencer Boot

  • I recently purchased an Edelbrock/BBK 75mm throttle body, #3872,from The Car Shop Inc. I have yet to install it because I'm not sure of what to expect from this bolt-on replacement. I think more parts may be necessary to get full gain from it. Increasing the aperture of the air intake system at one junction doesn't sound like a great improvement unless the whole intake system is widened. The literature states that this modification can result in an improvement of about 5 horsepower but I think this assumes other modification have taken place.

        Edelbrock 75mm Throttle Body

Exhaust System

  • I had Flowmaster 40-Series Delta Flow, (catalog number 942443), two-chamber mufflers installed at the local Meineke shop at 3344 North Rancho Rd. here in Las Vegas. The total cost was $350. I had considered some of the cat-back kits but was a bit afraid to attempt to install them myself as there is a fair deal of tricky alignment involved. Ray at Meineke did a superb job and they sound great -especially when the engine revs. They also have a quiet low frequency growl at engine idle speed. The Flowmaster literature claims that their mufflers can result in an improvement of 10-30 horsepower.

        Flowmaster 40-Series Cutaway View

Esthetics

  • I purchased APC Euro-style Altezza tail lights from The Car Shop Inc. Installing them was quite easy as they are only lenses and the modular light bulb assemblies just plug right in. I prefer the look of these over Ford's stock tail lenses.

        Altezza Euro Tail Lights

Performance

  • My best guess is that these modifications have raised the GT's overall power to somewhere between 280hp and 285hp.
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