Eibach Pro-Kit Lowering Springs Engine Oil Filler Caps The tube-and-fin design features 20

The tube-and-fin design features 20 rows of 1" coolant tubes for maximum surface area

The ARP 445-1301 ARP Stainless Steel Header Stud Kits provides a more reliable mounting solution for performance headers than standard bolts

The Hypertech 158331 Hypertech Street Runner Power Chips from Hypertech is a direct ECU reprogramming solution that replaces your vehicle's factory calibration EPROM with an optimized performance tune

Spring rates are selected for the F-150's front-end weight bias

replace in axle pairs for balanced ride height and consistent cornering behavior

Eibach Pro-Kit Lowering Springs Engine Oil Filler Caps The tube-and-fin design features 20Eibach Pro Kit lowering springs are engineered for the enthusiast who demands reduced ride height and improved handling without the harshness of fixed rate lowering springs. The progressive winding provides a comfortable initial rate for daily driving that firms up as cornering loads increase. Cold wound from high tensile chrome silicon steel with Eibach's proprietary heat treating process. Each spring is preset to prevent sag over time. Durable red