Specifications
Part Details:
Overview
The IAG Performance Equal Length 3-Bolt Header and Uppipe is designed for 2002–2014 Subaru WRX, 2004–2021 STI, 2005–2009 Legacy GT, and 2004–2008 Forester XT models equipped with EJ-series turbo engines. Engineered for improved exhaust flow and balanced pulse delivery, this system enhances turbo response while producing a smoother, refined exhaust tone.
Built as a direct upgrade over restrictive factory manifolds, this equal length header and matching uppipe reduce backpressure before the turbocharger, making it ideal for performance builds focused on efficiency and power delivery.
Key Features
- Equal length runner design for balanced exhaust pulse timing
- 3-bolt flange configuration for proper turbo fitment
- Includes matching uppipe for improved exhaust efficiency
- Designed for EJ-series turbocharged engines
- Improves turbo spool and power consistency
- Durable construction for street and performance use
- Compatible with factory-style turbo setups
Performance Benefits
An equal length header promotes smoother exhaust flow and consistent cylinder scavenging, which can improve turbo efficiency and overall power delivery. Unlike unequal length systems that emphasize the classic boxer rumble, equal length designs prioritize flow balance and performance refinement.
Fitment
- 2002–2014 Subaru WRX (EJ turbo models)
- 2004–2021 Subaru STI
- 2005–2009 Subaru Legacy GT
- 2004–2008 Subaru Forester XT
What’s Included
- IAG equal length header
- Matching 3-bolt uppipe
- Required hardware
FAQs
What is the difference between equal and unequal length headers?
Equal length headers balance exhaust pulse timing between cylinders, improving flow efficiency and producing a smoother exhaust tone compared to the classic rumble of unequal length systems.
Does this improve turbo response?
Yes. Reducing exhaust restriction before the turbocharger can help improve spool characteristics and overall performance consistency.
Is tuning recommended after installation?
Tuning is recommended when modifying exhaust components on turbocharged vehicles to ensure optimal performance and reliability.
Will this fit FA-series engines?
No. This header and uppipe system is designed specifically for EJ-series turbocharged applications.
Recommended Upgrades
- Browse exhaust systems and components
- Shop all IAG Performance products
- Explore Subaru WRX performance parts
- Explore Subaru STI performance parts
Shipping
Shipping Options:
WrenchMastersAuto.com ships your performance parts safely, quickly and conveniently nationwide via the most trusted shipping carriers such as: UPS, Fed Ex, USPS, and DHL.
Delivery Times:
- In Stock: 3-7 Business Days
- Custom Orders: 2-6 Weeks, Please Email: [email protected] or Call: 727-565-9808 for Questions.
Enjoy FREE SHIPPING on most orders over $199!
Contact WrenchMasters
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