A guide to modifying Nissan's Sentra, NX, 200SX and Infiniti G20 cars for street and racing performance, both engine and chassis. Includes sections on bolt-on engine mods, bottom-end mods, cylinder head mods and swaps, turbocharging, nitrous oxide, suspension and chassis tuning, brake upgrades, aero bodywork, interior mods for racing safety and engine swaps.