Maximize the performance, reliability, and precision of your vehicle with GrimmSpeed Performance Parts, the industry standard for meticulously engineered upgrades, available at Straight Six Imports. Based in the USA, GrimmSpeed is renowned for developing high-quality solutions, primarily for the Subaru WRX, STI, and Forester XT platforms, alongside other popular imports.

GrimmSpeed is committed to delivering products that not only provide verifiable power gains but also ensure a perfect, OEM-like fitment. Their dedication to using premium materials and advanced manufacturing makes them a favorite among tuners and enthusiasts.

Explore the GrimmSpeed Performance Lineup:

• Intake & Exhaust: Shop iconic upgrades like the Stealthbox Cold Air Intake (CAI), high-flow Gaskets (Header, Turbo, Downpipe), and specialized Up-Pipes, all designed to optimize flow and spool time.

• Thermal Management: Find critical components like Master Cylinder Braces, Turbo Heat Shields, and Ceramic Coated Headers that enhance heat management and structural rigidity.

• Boost Control: Upgrade to precise control with their popular Electronic Boost Control Solenoids (EBCS), essential for accurate tuning and stable boost pressure.

• Aesthetic & Fitment: Discover popular accessories such as the License Plate Relocation Kit and various Dress-Up components that combine function with aggressive styling.

Upgrade your Subaru or import with parts known for quality, fitment, and performance. Shop the full range of genuine GrimmSpeed products with fast Canadian shipping and expert support from Straight Six Imports today.