HKS Unequal Length Stainless Steel Exhaust Manifold

2002-2007 Subaru WRX / 2004+ Subaru STI

Ships for free in the 48 states

SKU: 1419-RF001We price match!

Out of Stock

The Stainless Steel Exhaust Manifold will maximize the exhaust flow in the Subaru STI.
You will earn Reward Points with this Purchase.


HKS Stainless Steel Exhaust Manifold


  • SUS304 stainless steel construction
  • Premium welds
  • Designed to optimize exhaust flow while increasing spool
  • Unequal design
  • Improves horsepower and torque
  • Improves throttle response and reduces turbo lag
  • Creates an aggressive exhaust rumble
  • Works with the stock up-pipe, or any aftermarket up-pipe that utilizes the 2-bolt flange
  • Includes (2) manifold gaskets
  • Includes (1) up-pipe gasket
  • Includes heat wrap
  • Includes zip ties and an O2 sensor plug



This is the HKS Stainless Steel Exhaust Manifold. This manifold has been designed using durable stainless steel construction that has been combined with smooth bends and premium welds to be a direct replacement for your factory exhaust manifold. The result is more horsepower and torque, improved throttle response with reduced turbo lag, all while saving weight.

0 customer reviews

Average rating
(based on 0 reviews)
Ease of Installation
Fit / Quality
Overall Satisfaction

Write Your Own Review

Only registered users can write reviews. Please, log in or register


No questions have been asked about this product.

Upload images for this product