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Home GlossaryCarbon Fiber Hood

Body & Aero

Carbon Fiber Hood

A weight-reduction body panel made from carbon fiber composite that replaces the OEM steel hood. Saves 10-15 kg from the front of the car (high impact since the weight is high and forward of the front axle). JDM brands like Seibon, Top Secret, and Garage Defend are common suppliers. Often paired with a hood vent to extract underhood heat.

Related Terms

Fender Flare (Overfender)

An extension to the wheel arch that adds width to accommodate wider wheels and tires. Fender flares can be bolt-on (Liberty Walk style) or molded permanently to the body (Pandem, Rocket Bunny). The widebody trend in JDM culture started with the Bosozoku scene in the 1970s and was revived globally by Kei Miura's Rocket Bunny kits.

Underbody Diffuser

A shaped panel under the rear of the car that accelerates airflow exiting from beneath the chassis, lowering pressure under the car and generating downforce. Pairs with a front splitter to create end-to-end balance. Properly designed diffusers can add 100+ kg of downforce at 200 km/h on time attack vehicles.

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