The Invidia Equal Length Race Exhaust Manifold optimizes exhaust gas flow for Subaru models, including 2005-2021 STI and 2008-2014 WRX. Constructed from durable 304 stainless steel, this manifold is designed to withstand extreme performance environments. Its equal-length configuration ensures balanced exhaust pulses, contributing to enhanced power delivery and a distinctive 4-cylinder race-inspired sound profile. The integrated 2-bolt up-pipe flange facilitates seamless integration with upgraded external up-pipes or various rotated turbocharger setups. Smooth, mandrel-bent tubing minimizes back pressure, allowing for efficient exhaust gas evacuation. This component is engineered for applications targeting horsepower figures exceeding 600, providing a critical upgrade for high-performance builds. An O2 sensor bung is pre-installed for precise air-fuel ratio monitoring. Installation may necessitate an STI oil pan for proper clearance on specific models. For optimal performance, professional tuning, such as a custom e-tune from Migtuned tailored to your vehicle's specific year and model, is highly recommended after installation.
| Material | 304 Stainless Steel |
| Design Type | Equal-Length |
| Up-pipe Flange | 2-Bolt |
| O2 Sensor Bung | Integrated |
| Exhaust Flow | Unobstructed via Smooth Bends |
| Power Target | 600+ Horsepower |
| Sound Profile | Aggressive 4-Cylinder Race-Inspired Sound |
| Included Components | New Exhaust Manifold Studs |
| Compatibility | Subaru Models (Inc. 2005-2021 STI / 2008-2014 WRX) |
| Application | Upgraded Up-pipe or Rotated Turbo Setups |
Invidia Race Equal Length Header - Subaru 2005-2021 STI
- 2009-2010 Subaru Impreza 2.5 GT H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds
2009: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2010: Must Use Subaru Oil Pan PN 11109AA151 For Clearance
- 2008-2014 Subaru Impreza WRX H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds
2008: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2009: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2010: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2011: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2012: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2013: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2014: Must Use Subaru Oil Pan PN 11109AA151 For Clearance
- 2010-2014 Subaru Impreza WRX Limited H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds
2010: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2011: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2012: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2013: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2014: Must Use Subaru Oil Pan PN 11109AA151 For Clearance
- 2009-2014 Subaru Impreza WRX Premium H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds
2009: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2010: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2011: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2012: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2013: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2014: Must Use Subaru Oil Pan PN 11109AA151 For Clearance
- 2004-2014 Subaru Impreza WRX STI H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds
2004: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2005: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2006: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2007: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2008: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2009: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2010: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2011: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2012: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2013: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2014: Must Use Subaru Oil Pan PN 11109AA151 For Clearance
- 2007 Subaru Impreza WRX STI Limited H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds
2007: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2011: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2012: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2013: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2014: Must Use Subaru Oil Pan PN 11109AA151 For Clearance
- 2011-2014 Subaru Impreza WRX STI Limited H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds
2007: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2011: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2012: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2013: Must Use Subaru Oil Pan PN 11109AA151 For Clearance 2014: Must Use Subaru Oil Pan PN 11109AA151 For Clearance
- 2010 Subaru Impreza WRX STI Special Edition H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds
2010: Must Use Subaru Oil Pan PN 11109AA151 For Clearance
- 2009-2010 Subaru Impreza 2.5 GT H4.2458cc Exhaust, Mufflers & Tips::Headers & Manifolds

