Calipers FNSL 6 Piston Radial Mnt

The Wilwood Calipers FNSL 6 Piston Radial Mount represents a significant upgrade for enthusiasts and mechanics seeking to improve braking performance on modified vehicles. This six-piston caliper is engineered for drivers who demand superior stopping power and fade resistance during aggressive driving, track use, or heavy-duty applications. Whether you're upgrading a street performance build, autocross competitor, or dedicated race car, this caliper delivers the clamping force and thermal stability required for reliable deceleration under extreme conditions.

The six-piston radial mount configuration provides exceptional braking torque by distributing clamping force across six independent pistons, reducing pad deflection and ensuring more consistent pressure application across the rotor surface. Wilwood's radial mounting design minimizes lateral loads on the caliper body, improving stiffness and reducing deflection during peak braking events. At 4.6 lbs per caliper, this component balances structural rigidity with lightweight construction—critical for vehicles where unsprung weight reduction directly impacts handling and suspension response. The compact footprint (3.13 x 3.13 x 10.25 inches) allows fitment within modern brake cooling ducting systems without sacrificing rotor clearance or pad material thickness.

This caliper suits high-performance street applications, road racing, and weekend track events where brake temperatures exceed standard passenger-car limits. Installation requires proper rotor specification, high-temperature brake fluid (DOT 3 or DOT 4 minimum), and compatible brake lines rated for performance use. Wilwood calipers integrate seamlessly into OEM or aftermarket brake system architectures, and the radial mount design accommodates both traditional and modern suspension configurations. Pair this unit with Wilwood rotors and performance pads for a cohesive braking package that delivers predictable modulation and extended service life in demanding environments.