This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.
Purchasing this product requires you to sign our Vehicle Compliance Waiver here.
The factory exhaust manifold for the Scion FR-S & Subaru BRZ was designed in the 4-2-1 type layout for a better performance and torque at lower engine speeds. Because the first catalytic converter is mounted at the exhaust manifold, exhaust pulsatory motion makes the exhaust gas flow back to the pipe in the middle RPM range which could cause a loss of power output by behaving as an exhaust gas recirculation.
The HKS exhaust manifold follows the same 4-2-1 type layout, but by creating it without the catalytic converter, the HKS manifold provides both more torque in the middle RPM range and more peak power at high RPM s. Street driveability is increased with the bump in torque, and at high RPM it provides more power and enhances the clean feel of the high RPM driving characteristics.
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WARNING: Cancer and Reproductive Harm
Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa's strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company's success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts' needs. Moreover, HKS' products are designed to be user friendly for easy installation.
HKS provides a warranty to the original purchaser of HKS exhaust systems against defects in materials and workmanship for a period of one year. The warranty applies only for vehicle specific exhaust systems. Other products such as metal catalyzers, front pipes, exhaust manifolds, and center pipes are not covered.
Agency Power Cold Air Intake Kit Scion FR-S / Toyota GT-86 / Subaru BRZ