Description

Impreza GVF HKS Exhaust Manifold – 14019-AF002

Code No. 14019-AF002

You can have the great performance and great muffler sound of the isometric layout by changing exhaust manifold only with the stock oil pan layout. You will notice immediately the new exhaust sound and the AT vehicle’s paddle shift gear down feels very cool. You can enjoy the GRB as AT vehicle. The gas pedal response is more sensitive, so it’s much easier to control.

Vehicle	Model	Engine	Model Year	Main/Bypass		Code No.	Price	Remarks
Vehicle	Model	Engine	Model Year	Pipe size	Pipe thickness	Code No.	Price	Remarks
IMPREZA	GVF	EJ25(TURBO)	10/07-14/08	42.7	2	14019-AF002		For “WRX STI A-Line 4door” SUH409

【STAINLESS STEEL EXHAUST MANIFOLD (for Turbo)】

STAINLESS EXHAUST MANIFOLD pulls out potential power from a turbocharged engine.

The best solution to reduce primary exhaust gas pressure and supply smooth exhaust gas to the turbine is the replacement of exhaust manifold. HKS supplies stock replacement type Stainless Exhaust Manifold.

The turbine performance is affected by the Exhaust Manifold.

Shape, the diameter of pipes, and production quality of exhaust manifold between engine and turbine affect the performance of the turbine. HKS Exhaust Manifolds were developed with know-how and data from long time development experience of turbo technologies.
The diameter of pipes and the design of bending are designed for each engine performance and displacement. The welding portion between flange and pipe is flattened to reduce the friction of exhaust gas.
As a result, the response of turbocharger at middle and high rpm range is improved. Both torque and horsepower are also increased.