Year 2000 Mustang GT Mods

[Hammer]

Welcome to Mod Madness!

As far as the exhaust on the new modulars go, a catback will do nothing for your performance, but it will change the sound.
An X-pipe with cats will boost your HP a bit, but to be honest there are better first mods to do than exhaust....
3.73 gears and a good shifter (if manual) will make the most use of the horses you already have.
Some pulleys and a K&N are also some good low-cost mods that help a bit.
The above are usually the best first modifications, and Ripper has a good list too.
Hope this helps...

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98 GT
Bassani X-pipe, Dyno-Max Cat backs, 3.73 gears, Steeda shifter, FMS pullies, 87mm MAF, Roush cold air kit, Eibach springs, and Zex 75 shot