
The Nissan 370Z Akebono Sport calipers are a factory performance brake upgrade fitted to 2009-2020 370Z Sport Package, Sport Tech, and all NISMO models, and the setup consists of four fixed monoblock aluminum calipers — two front and two rear — all manufactured by Akebono Brake Industry Co., Ltd., a Japanese OEM supplier that also produces calipers for Porsche, McLaren, Audi, and Mercedes AMG; each caliper is CNC-machined from a single billet of aluminum for maximum rigidity and minimal flex under load, then powder-coated in high-temperature metallic red with white "NISSAN" lettering and the Akebono logo cast directly into the body, a finish rated to withstand over 600°F before discoloration, and the front calipers use a radial-mount design with 4 opposed pistons in a staggered layout of 40.4 mm leading and 38.1 mm trailing diameters to promote even pad wear as the rotor rotates into the caliper, clamping massive 355 mm x 32 mm directional-vented rotors with curved internal vanes for improved cooling, while the rear calipers are axial-mount 2-piston units with twin 38.1 mm opposed pistons paired to 350 mm x 20 mm vented rotors that also house a separate drum-in-hat parking brake assembly since the Akebonos don’t integrate an e-brake mechanism; Nissan part numbers are 41000-JL00A and 41001-JL00A for front left/right and 44000-JL00A and 44001-JL00A for rear left/right, and these same calipers appear on Infiniti G37S, Q50S, Q60S, and Q70S Sport models with different paint colors, as well as early R35 GT-R rear applications, with front calipers weighing roughly 7.2 lbs bare and rears about 4.8 lbs, keeping unsprung mass lower than comparable cast-iron designs; the monoblock construction eliminates external crossover pipes by using internal fluid passages, reducing leak points, and the fixed design removes sliding pins entirely, which sharpens pedal feel, improves modulation, and virtually eliminates pad knockback, while factory pads use Akebono ACT ceramic compound in D1060 front and D1101 rear shapes, delivering strong cold bite, low noise, low dust, and fade resistance to around 800°F, yet the aftermarket supports everything from EBC Yellowstuff and Hawk HP+ to Endless MX72 and Carbotech XP10 for track use, and because the caliper geometry provides excellent wheel clearance with 18"+ Sport wheels, a larger swept area, and significantly more thermal mass than the base 2-piston front/1-piston rear sliding setup, 60-0 mph stopping distances drop roughly 8-10 ft on identical tires, making them capable of light-to-moderate track days without immediate fade for most drivers, though the factory design omits dust boots on the pistons which some owners retrofit for longevity; culturally, the red Akebonos became the quick visual identifier for a true Sport Package Z34, with “Akebono” translating to “daybreak” in Japanese, and their OEM reliability, Porsche-level aesthetics, and sub-$1k used market price have made them one of the most popular big-brake retrofits for 350Z, G35, S-chassis, and other Nissan 5x114.3 platforms using adapter brackets, cementing them as an iconic, over-performing factory brake system that balances daily-driver manners with legitimate performance capability.