HKS 4-1 Exhaust Manifold - Subaru WRX/STI EJ20K/EJ207 GC8/GDB (Single Scroll)

Name: Subaru WRX/STI EJ20K/207 GC8/GDB (Single Scroll) 4-1 Manifold HKS
Brand: HKS
SKU: hks1419-RF001
Price: 1727 EUR
Availability: InStock

The HKS 4-1 Exhaust Manifold is designed for Subaru WRX and STI models equipped with EJ20K and EJ207 engines and a single-scroll turbocharger. Manufactured from SUS304 stainless steel, the manifold features an optimised equal-length design that improves exhaust flow from the cylinder head to the turbocharger. By eliminating the pulse interference found in the factory manifold, turbine efficiency can be improved throughout the RPM range, which may contribute to quicker boost response and improved engine performance.

Precision engineered with TIG-welded joints and machined flanges, the manifold delivers outstanding durability and an accurate fit. The SUS304 stainless steel construction provides outstanding corrosion resistance, excellent heat resistance, and long-lasting durability, making it well suited for demanding street, track, and high-performance applications.

Specifically developed for Subaru EJ turbocharged engines, the HKS equal-length manifold optimises exhaust pulse delivery to the turbocharger for smoother exhaust flow and improved turbine efficiency. This may contribute to quicker throttle response, enhanced power delivery, and improved mid-range torque, while also producing a more efficient engine character. It is an ideal upgrade for enthusiasts seeking reliable performance for street and track use.

Features

Designed for Subaru WRX/STI EJ20K and EJ207 GC8/GDB (Single Scroll).
Genuine HKS 4-1 Exhaust Manifold.
Manufactured from SUS304 stainless steel.
Equal-length design optimised for Subaru EJ turbocharged engines.
Provides improved exhaust flow and reduced back pressure.
Contributes to quicker boost response depending on the engine setup.
Contributes to quicker throttle response, improved engine performance, and improved mid-range torque.
Eliminates exhaust pulse interference compared to the factory manifold.
High-quality TIG welds and precision-machined flanges.
Outstanding corrosion resistance, excellent heat resistance, and long-lasting durability.
Direct bolt-on installation with OEM-style fitment.
Suitable for street and track use.

Product video

Technical specification

Article nr:

hks1419-RF001

Manufacture Partnumber:

1419-RF001

In October 1973, two talented and young engineers had a vision; to design and build high performance engines and components that major OE manufacturers could not, or would not, produce. HKS pioneered the Japanese aftermarket industry by delivering a host of exciting new products, including the first commercially available electronic turbo timer and boost controller. Other early products included piggy-back ECUs and sophisticated fuel management tools. HKS was clearly driving performance trends for Japanese vehicles forward!

Today, HKS is one of the world's most well-known brands and the obvious choice for you who builds a JDM car. In the assortment you will find everything from chassis products to exhaust systems and turbo kits. HKS is behind some of the coolest builds and professional drivers in the world, so when you choose HKS, you choose the best.