IAG Performance Equal Length Header With Uppipe

2015-2021 Subaru STI

Ships for free in the 48 states


Out of Stock

The Equal Length Header and Up-Pipe Package will increase the exhaust flow in the Subaru WRX/STI.


IAG Performance Equal Length Header & Up-Pipe Subaru Models inc. 2002-2014 WRX 2004=2020 STI


  • Durable stainless steel construction on both header and up-pipe
  • Equal length layout
  • 4-2-1 configuration
  • Smooth mandrel bends
  • Increased piping diameter
  • Includes 3-bolt up-pipe
  • Increases horsepower
  • Increases torque
  • Produces the aggressive Subaru rumble
  • Improves the turbo spool by 300 RPM
  • Improves throttle response
  • Reduces turbo lag
  • Includes zinc-plated hardware
  • Includes new exhaust gaskets



  • With being an equal-length design, this header will remove the "boxer rumble"
  • 2002-2005 Subaru WRX models require a 2.5L STI oil pan for proper clearance
  • 2002-2006 Subaru WRX models the STI oil cooler and oil pan



The IAG Performance Equal-Length Exhaust Manifold and Up-Pipe is a great way to increase the horsepower and the torque while improving the turbo spool by 300rpm to produce a race-inspired 4cyl exhaust note. The header features true 304 stainless steel construction along with cast stainless flanges. The header also has a 45mm piping diameter to allow for an unobstructed flow path for the exhaust gases leading to the turbocharger. Because of the free-flowing design, you will see power gains across the entire RPM band. 

The header also features a slip-joint expansion section to accommodate for the flex that is caused by heat cycling and is TIG-welded to provide maximum strength. The up-pipe included in this package features a 60mm piping diameter with a 3-bolt flange, and it will come supplied with a multi-layer steel gasket to provide an optimal seal between the header and the up-pipe. 

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