Founded in Japan in 1992, A'PEX has grown from just a small tuning parts manufacturer to a multi-industry international powerhouse. It ranks among the best performance parts companies alongside Greddy and HKS. An international network of tuning shops and consumers provides a steady flow of incoming information that continuously fuels the engineers at A'PEX. Championship wins and racing feedback can be seen reflected throughout the product lineup.

In response to increasing emissions and environmental issues, A'PEX has embraced the technological fight to create clean burning technologies for everyday automotive use. Their ability to produce the next generation racing engines and tuning cars relies on the ability to analyze and conquer today's emissions problems. Apex's expansion into Diesel Particulate Filter systems has won acclaim in Japan. A'PEX DPF systems are now standard on public diesel buses all across the metropolitan Tokyo area as well as on a whole generation of commercial diesel trucks. High performance catalytic converters are one of the new street products born from this division.
The A'PEX group of companies will continue to grow with motorsports and the international street tuning culture as its core. Countless technologies and groundbreaking innovations have been recognized through the one passion that brought this all together: