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Top » Catalog » Turbo » Turbo Kits/Accessories/Gaskets » ELHeaderEJ » Exhaust Equal EL Header/Manifold Subaru Impreza WRX STI EJ25

Tuning Developments Exhaust Components for the popular Newage Subaru Impreza WRX STI (bugeye, blobeye, hawkeye, hatchback, WRX STI models) EJ25 Engines

Item: Performance Equal Length (EL) Exhaust Header/Manifold for Subaru Impreza WRX STI EJ25 Engines

Add maximum power and torque with the Tuning Development UEL Performance Header/Manifold Kit to your Subaru Impreza EJ25 Engine.

One of many parts which will be coming from Tuning Developments for your Subaru Impreza WRX STI EJ25 Models! Manufactured here in the UK, with all joints utilising superior flanges and bolts for a reliable seal. The Tuning Developments Unequal Length Performance Exhaust Header/Manifold is made from high quality T304 grade thick wall stainless steel, which is mandrel bent ensuring that pipes aren’t crushed or deformed when being bent for better gas flow and sustained pipe bore size throughout the system, this in turn helping to maximise performance gains. On top of all this, the weight of this exhaust system is substantially less than the factory system, improving performance further again!

All our Performance Exhaust Header/Manifold Packages are designed to allow a complete bolt on application against the stock fitment exhaust manifold/header on all Newage Subaru Impreza WRX STI EJ25 Engine Models.

We have done a huge amount of design and testing to ensure our Performance Header offers the ultimate power output and torque increase for the EJ25 Engines, with this Header fitted along with our custom ECUtek Remap tune we can offer a large increase in BHP and Torque increased throughout the rev range over the standard exhaust manifold/header, must have upgrade to suit all EJ25 Engines.
This Performance Exhaust Header/Manifold from Tuning Developments will interchange with the factory uppipe system, making install very simple and straight forward, ensuring fitment is as good as the factory exhaust manifold.

Further performance gain can be had from this exhaust manifold/header upgrade with our custom ECUTeK ECU Remapping, available at Tuning Developments.


Subaru Impreza Newage Hawkeye WRX & STI Models EJ25 Performance EL Exhaust Header/Manifold
Subaru Impreza Newage Hatchback WRX & STI Models EJ25 Performance EL Exhaust Header/Manifold
Subaru Impreza Newage Saloon WRX & STI Models EJ25 Performance EL Exhaust Header/Manifold

Trade enquires are welcomed for our range of Subaru Impreza WRX STI EJ20 EJ25 products, please contact us for more information on

This product was added to our catalog on Tuesday 10 July, 2018.