RS*R

About RS*R: Racing Studio-R

RS*R — short for Racing Studio-R — is a globally respected name in high-performance suspension engineering. RS*R traces its roots to Osaka, Japan, where it began as a wholesale parts distributor. Unsatisfied with the quality of components available on the market, the company established its own manufacturing facility in September 1980 and set out to produce suspension parts that met its own demanding standards. Decades of motorsport involvement — spanning drag racing, drifting, rally, N1 endurance, and Super GT competition — have shaped every product the brand develops.

RS*R is globally recognized for its top-of-the-line high-performance suspension products for both daily drivers and the motorsports industry. That dual focus is central to the brand's identity: the same engineering discipline applied on a race circuit finds its way into parts designed for daily commutes and spirited weekend drives alike.

Precision Engineering at Every Step

What sets RS*R apart is its meticulous attention to manufacturing detail. RS*R assembles laser-cut upper mounts, hand-welded lower brackets, and vehicle-specific valving by hand — a level of craft more commonly associated with bespoke race components than volume aftermarket production. Utilizing urethane bushing technology and silent roller bearings, RS*R coilovers eliminate excessive vibrations from everyday driving as well as minimize noises from suspension movement.

The brand's product lineup centers on its celebrated spring and coilover systems. RS*R Down and Super Down springs lower the center of gravity for improved stability and cornering response, making them a popular choice for enthusiasts who want meaningful handling gains without a full suspension overhaul. For drivers who want maximum adjustability, the RS*R Sports-i coilovers are engineered for dual-purpose performance, offering adjustable damping that allows you to switch between daily comfort and track stiffness.

RS*R Coil Springs & Lowering Kits

The heart of the RS*R catalog is its extensive range of coil springs, engineered to cover a wide variety of makes and models. The RS*R suspension coil range is available for a large number of vehicles and has proven a popular, easy, and effective way to lower a vehicle whilst maintaining ride comfort. For those looking for a more complete solution, RS*R's coil spring lowering kits bundle everything needed for a clean, vehicle-matched drop. RS*R down springs are specialized lowering springs that reduce ride height while maintaining suspension travel — ideal for enthusiasts who want a sportier stance and improved handling without switching to full coilovers. Drivers seeking matched front-and-rear fitment can also explore RS*R's coil spring sets, which are tested on actual vehicles to ensure consistent performance across all four corners.

Motorsport-Proven, Street-Ready

Founded in Japan in 1980, RS*R has become a prominent name in the automotive aftermarket industry. From drag racing to drifting and circuit racing, RS*R's products deliver exceptional quality and performance for both street and track enthusiasts. Beyond suspension hardware, RS*R also offers a selection of oil additives and fuel additives — engine treatment products designed to complement the performance gains delivered by their suspension upgrades. Enjoy a spirited weekend track drive without sacrifice to daily riding comfort or performance with RS*R and its superb suspension and engine treatment products.

Whether you're building a dedicated track car, chasing an aggressive stance, or simply want sharper handling on your daily driver, RS*R's precision-engineered lineup delivers solutions backed by decades of real-world motorsport development.