【RACING SUCTION】

SUBARU IMPREZA WRX STi  - EJ257 GRF / GVF  , 2010 > 2014 

A Line Auto Only

The most powerful intake system carefully designed to fit engine room of a vehicle. HKS Racing Suction pushes air intake system efficiency to the limits.

Stealth frame is redesigned!

"Hyper Stealth Frame" exceeds the performance of previous Super Stealth frame.
Increasing air intake surface area by 27% improves air intake efficiency.

Bold white HKS logo printed on black anodized back plate accentuates the engine bay!

The outer edge of the funnel is securely fixed to the aluminum back plate. Use of aluminum significantly improves rigidity and durability. Alumite process improves surface of the funnel and also provides a sleek black look.

Real sports

TECHNOLOGY

Vehicle specific suction pipe design.
Angle and length of pipe enhance the induction efficiency.
It is effective for quick response for NA engines and higher performance for turbocharged engines.

Point

With stock suction system, induction air hit to corrugated portion of hose and makes swirl and resistance. The specially designed pipe reduces corrugated portion and gap inside pipe to make air flow smoother.

• We recommend you to use a high temperrature type spark plug because of the higher power with this product. Please change the spark plug for sure especially in the sport racing.
• This product is made for a stock vehicles but for some cars, it might need to adjust in AFR, F-CON settings.
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■AIR FUEL RATIO REGULATOR (AFR) FOR GRF/GVF

Standard Racing Suction Reloaded Intake Kit corrects the airflow output characteristics by the unique shape of airflow adapter's air guide. For GRF & GVF, airflow correction by the air guide's shape is inadequate; therefore, the AFR is designed exclusively for GRF and GVF and included in this kit. Stable performance can be presented for a stock to a vehicle with the exhaust system, catalyzer, and factory replacement type exhaust manifold.