Invidia Equal Length Headers (Large Pipe) with Up Pipe – Subaru WRX / STI EJ Engine

Invidia Equal Length Headers (Large Pipe) with Up Pipe – Subaru WRX / STI EJ Engine

Application: Subaru WRX / STI / Forester / Liberty | EJ Engines | Includes Up Pipe

Invidia's Equal Length Headers for the EJ-powered Subaru WRX and STI are the definitive upgrade for owners chasing maximum turbo response and a cleaner, more linear power delivery. The equal-length 4-1 design eliminates the uneven exhaust pulse timing inherent in the OEM unequal-length manifold — the single biggest restriction to spool speed and mid-range torque on the EJ platform.

This large-pipe variant steps up the primary tube diameter to 45mm, merging into a 60.5mm collector, delivering significantly improved exhaust flow over the standard-pipe version. The matched 60.5mm up pipe is included, ensuring the entire pre-turbo exhaust path is optimised as a system — no mismatched diameters, no bottlenecks.

Constructed from high-grade stainless steel with precision TIG welding throughout, the manifold is built to withstand the thermal demands of a turbocharged EJ in both street and track environments. Whether you're running a stock turbo or a big single conversion, these headers lay the foundation for serious power gains.

Vehicle Fitment:

Specifications:

Sold as a kit: headers + up pipe.

Please contact us at coore.com.au for lead time and shipping information.