GrimmSpeed is a premium manufacturer of high-performance aftermarket parts, specialising in Subaru, Mitsubishi, Toyota, and other turbocharged performance vehicles. Designed and manufactured in the USA, GrimmSpeed products are engineered to improve reliability, power, and drivability while maintaining exceptional fit and finish. The range includes boost control solenoids, intercooler upgrades, turbo inlet hoses, downpipes, exhaust components, intake systems, engine management accessories, gaskets, cooling upgrades, and performance hardware. Trusted by enthusiasts and professional tuners worldwide, GrimmSpeed delivers proven performance for both street and motorsport applications. Shop genuine GrimmSpeed products at MD Performance with nationwide delivery across South Africa.