・This Floor sub frame is best suitable for powerful WRX STI.
・This floor sub-frame connects center of the vehicle chasses. Floor sub-frame add rigidity of front and rear part of slide door to support center of chasses to prevent body flex. It improves driving comfort.
・High strengthen oval shaft is used for the piping to keep under the car clearance and rigidity.（20mm x 40mm ）
・Installed with bolt-on application.
・Steel bars are White powder coated for scratch and rustproof.
*Unconfirmed for later models.
