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The Borla header for FR-S/BRZ features unequal length, straight-through technology to greatly improve horsepower. With an unequal length design you'll add the famous Subaru boxer rumble to your exhaust note.
The Borla header does not include new manifold to block gaskets and we strongly recommend replacing your exhaust manifold gaskets when installing a new header on your FT86. These are available separately in our store.
INSTALLATION INSTRUCTIONS. <----- Click this link.
Sean's Application Notes: Header installations require a tune to take maximum advantage of the new hardware and to avoid any check engine lights. Pairs great with our OpenFlash tablet tuning solution to eliminate the torque dip!