THE GREDDY LEGACY: TURBO CULTURE DEFINED
If you grew up in the JDM tuning scene of the 1990s and 2000s, the GReddy name was everywhere. Trust, operating under the GReddy brand globally, became synonymous with turbo culture itself. The iconic GReddy turbo timer—that little digital display counting down before you could safely shut off your turbocharged engine—became standard equipment in every serious build. It wasn't just a product; it was a badge of honor.
Trust was founded in 1977, but it was the GReddy brand that captured the imagination of tuners worldwide. Their product range expanded to cover nearly everything a tuner could need: intercoolers that became the benchmark for cooling efficiency, exhaust systems with that distinctive deep tone, turbo kits that transformed naturally-aspirated engines into forced-induction monsters, and oil coolers that kept modified engines alive during spirited driving.
What made GReddy different wasn't just product quality—it was their approach to complete systems. Rather than selling individual parts, Trust engineered integrated solutions. Buy a GReddy turbo kit and you got everything: manifold, turbo, wastegate, piping, intercooler, and the electronics to make it work. This systems approach meant compatibility was guaranteed—no mixing and matching parts that might not play well together.
The GReddy intercooler became particularly legendary. Their tube-and-fin designs set standards for heat dissipation that competitors struggled to match. For Skyline GT-Rs, Silvias, and Supras, a GReddy front-mount intercooler upgrade was often the first serious modification—visible through the grille as a statement of intent. The company understood that tuning is as much about identity as performance.
Trust also pioneered the aftermarket ECU space with their e-Manage and other engine management solutions. Before standalone ECUs became common, piggyback systems like these allowed tuners to safely increase boost, adjust fuel maps, and extract more power without replacing the factory computer entirely. It was accessible tuning for the masses—you didn't need a motorsport engineering degree to make your car faster.
EXHAUST EXPERTISE: THE GREDDY SOUND
GReddy exhausts became famous for their distinctive character. Neither too loud for daily driving nor too quiet to satisfy enthusiasts, they struck a balance that made them popular worldwide. The GReddy SP2, Evo, and Racing Ti lines each targeted different users—from street builds wanting a deeper tone to track cars needing maximum flow.
Their titanium exhaust technology deserves special mention. The GReddy Racing Ti exhaust systems used genuine titanium construction, not just titanium tips on steel pipes. The weight savings were significant—often 10-15kg compared to steel equivalents—and the distinctive blue/purple titanium coloring from heat cycles became a visual signature. On cars where every kilogram matters, this made a real difference.
Trust's R&D approach to exhausts combined flow bench testing, dyno validation, and real-world driving evaluation. They didn't just design for peak power—they engineered for the entire RPM range, ensuring strong mid-range torque that matters more on street and touge driving than top-end numbers.
VISITING TRUST TODAY
Trust's Tokyo headquarters remains a pilgrimage destination for JDM enthusiasts. The showroom displays their current product lineup alongside historic pieces—including demo cars that showcase what complete GReddy builds can achieve. Walking through the facility, you'll see generations of product evolution, from early turbo kits to current digital tuning solutions.
Parts availability is excellent. Unlike some tuning companies that focus only on current vehicles, Trust maintains support for classic platforms. Need an intercooler kit for your R32 GT-R? A turbo timer for your JZA80 Supra? GReddy still stocks parts for vehicles that left production decades ago. This commitment to legacy support has earned them fierce loyalty from the classic JDM community.
For international visitors, Trust offers English-language support and can ship worldwide. If you're planning a JDM parts shopping trip to Japan, Trust headquarters should be on your itinerary. The combination of historic significance, current relevance, and comprehensive inventory makes it a one-stop destination for serious tuners.