mei began operations in 1968 as a race car tuner in Japan. Over the last 40 years Japan has emerged as one of the leaders in automotive research, racing, and culture. Tomei products have been utilized in nearly every motor sport imaginable. Tomei’s racing heritage means their research and design team have first hand knowledge of the extreme demands racing puts on an engine. Using only the highest quality materials means that Tomei’s products can handle the intense strain and heat a purpose built engine will experience whether it be on the street or the track. Tomei’s attention to detail is second to none. All of their products are thoroughly researched and engineered to achieve optimal efficiency. Because of even miniscule differences in measurements can cause catastrophic engine failure, all Tomei products fall within strict tolerances. Tomei machines all of their engine components to enhance airflow and ensure proper fitment and seal.
After 22 years of the RB26 first debut. The impression left has lead many people are still enjoying tuning. At TOMEI, we wanted to see more users enjoy tuning their engines, so we continued development on new products. During the development process, with such diverse testing of housings, turbine wheels, and actuators was completed both on the engine bench Dyno and on actual use on a vehicle. The usual surging that is common with twin Turbos was suppressed. The right turbo design was made that will spool all the way up to high rpm as intended for the RB26 was completed. Up until now, when aiming for higher output power of more than 600ps, larger modifications were needed to the exhaust manifold for an additional waste gate, which also increased costs. But now, this turbo kit is compatible with the stock exhaust manifold, and it is a 100% true bolt-on application that can potentially deliver more than 650ps (M8260).
The TOMEI Arms Turbine Kit M8270 M7960 SR20DET greatly exceeds all performance aspects over the stock unit and delivers the most power and torque gains possible on a direct bolt on replacement turbo. The M8270 is designed for big power over 450ps, while the M7960 is designed for high response 400ps.