The sport compact performance market is hot and getting hotter - and while the Honda Civic and Acura Integra have long been the dominant players in the market, a newcomer is emerging as a popular car for performance modifications - the Ford Focus. Well-built, inexpensive, good looking, and easy to modify, the Focus is quickly catching the Hondas in terms of market popularity. This book shows Focus owners exactly what it takes to improve their car's performance, from simple modifications like installing a new air intake to radical mods like installing a turbocharger. The author also shows what those modifications can do, with before-and-after dyno tests for each modification. There's also extensive info on suspension and brake modifications for better handling and braking. It's a one-stop shop for those who want a sharper, faster Focus.