Tomei Powered

Overview

Tomei Powered is a Japanese manufacturer of automotive performance parts, specializing in tuning components for racing and high-performance vehicles. Originally focused on Nissan engines, it has expanded to support Toyota, Subaru, Mitsubishi, Mazda, and Hyundai platforms. The company designs, develops, produces, and sells parts alongside racing engine maintenance services.

History

Founded on June 19, 1968, by Seiichi Suzuki, a Nissan Works Team driver and tuner, along with the Johoku Riders group as TOMEI MOTOR Inc., initially specializing in Nissan racing engines. It relocated multiple times, introduced dynamometers for engine testing, and supported racing series like F3 and F3000. Renamed TOMEI POWERED Incorporated in 1994, it established a US subsidiary in 2006 and reached 55 years of operation by 2023.

Product Lines

Manufacturing

Products are designed, developed, and manufactured in-house at their facility in Machida-City, Tokyo, Japan. The company emphasizes thorough inspection and testing of components during production. No evidence of outsourcing.

Notable Products

• Expreme Ti Full Titanium Exhaust - Lightweight straight-through exhaust for Nissan RB and SR engines, prioritizing flow and durability.
• Poncam MX Series Camshafts - High-lift cams designed for maximum power in 2JZ and B-series engines.
• Type-R Twin-Scroll Manifold - Cast manifold for single turbo setups on 2JZ-GTE, improving spool and top-end power.
• GRP Forged Pistons - Low-friction pistons for high-compression racing builds across multiple JDM platforms.
• Oil Control Kits - Baffled sump kits and pumps to prevent oil starvation in high-G cornering.

Reputation

Tomei Powered is respected among JDM tuners for reliable, race-proven parts that deliver consistent performance gains. Enthusiasts praise the quality control and motorsport heritage, particularly for Nissan platforms. Some note higher pricing compared to generic alternatives, but professionals value the engineering for competitive applications.