GrimmSpeed parts fit like the platform was theirs - because functionally it is. Subaru builds run on this catalog.

GrimmSpeed machines and fabricates in-house in Minnesota, and its catalog depth on Subaru platforms - down to master cylinder braces and license plate relocations - reflects genuine platform obsession.

GrimmSpeed was born in 2006 in a single-stall Minnesota garage, where founder Justin Grimm started porting and polishing Subaru manifolds for local enthusiasts and never looked back. Two decades later the company designs and manufactures its parts in Minneapolis with in-house CNC machining, mandrel bending, and aerospace-certified welding, producing the boost control solenoids, up-pipes, downpipes, intercoolers, and turbo heat shields that have become near-standard equipment on tuned WRX, STI, and BRZ builds. Proven in rally, rallycross, and road course competition, GrimmSpeed parts deliver engineered performance at enthusiast prices, backed by a crew that daily-drives what it builds.