Simpson Racing Pro-Fit Base Layers - BottomMedium / Large - Black Legend Intake Manifold - Performer 5

Intake Manifold - Performer 5

Quick Change Gear Set - Standard - Set 32Q - 10 Spline - 4

Wheel Bearing Spacer - Steel - Black Oxide - Legends Car Front Hubs - Each

User-Friendly Design: Features a straightforward design that makes it easy to use

Simpson Racing Pro-Fit Base Layers - BottomMedium / Large - Black Legend Intake Manifold - Performer 5SFI 3. 3. The NEW Simpson Pro Fit Base Layers are our most comfortable and best fitting base layers. Constructed in Italy using the latest techniques, the Pro Fit provides superior softness and stretchability. The trusted Nomex material gives you an added layer of protection while maintaining breathability and comfort.