Honda Twincam. Its reputation precedes itself as being the designer of one of the most widely copied body kits of all time (the FEEL'S EK9 Civic kit) as well as one of the most experienced Honda-only tuning shops in Japan. Also known as FEEL'S, Honda Twincam has been building and servicing Hondas for 24 years out of its Saitama-based facilities. The Japanese super-tuner offers just about anything imaginable for a number of popular VTEC engines, including the B-, C-, F-, and K-series, as well as upgrades ranging from carbon-fiber body kits to radiators and exhaust systems for Civic, Integra, S2000, and NSX chassis dating back to the mid-'80s. The range of FEEL'S products might surprise you and is far more extensive than its rivals. Its product line includes everything from lightweight batteries, steel braided brake lines, brake pads, gauge cluster assemblies, and a number of other parts you might not normally expect from a company that's still happy to take on jobs as small as a simple oil change. If you find yourself near Saitama, be sure to check them out. With FEEL'S parts at such a premium here in the states, it's almost an easier way to get your hands on some.