Stainless Steel Unequal Length Headers for Subaru WRX / STi (1994-2014)
Suitable for all models of Subaru WRX / STi hatch and sedan including:
- GC8 / GF8
- GDA / GDB / GG
- 1994-2014 Subaru Impreza WRX
- 1994-2017 Subaru Impreza STI
- 2004-2013 Subaru Forester XT
Unfortunately the standard Subaru WRX exhaust setup is quite restrictive to pass mass production emissions and sound legalities. Unequal length headers in our 4-2-1 configuration are slightly lighter than equal length, and are proven to increase efficiency and power, bringing boost on 200-300rpm earlier due to it's shorter runners.
Un-equal length ensures that beautiful boxer rumble is maintained!
- High flowing 4 into 2 into 1 unequal length design for the best sound possible (typical boxer note)
- Bolts to factory exhaust / cat.
- 2 bolt connecting flanges
- 304 Grade stainless steel
- TIG welded
- Mandrel Bent
- Twin flex joins
- Welded & smoothed internal joins for increased flow
These are a proven design producing fantastic gains on boxer motors.
These headers provide the WRX with the biggest bang for your buck in performance gains for the WRX while opening up that distinctive rally car rumble the car should have left the factory with.
All Empire Performance Exhausts feature:
Mandrel Bent Piping
Empire Performance exhausts comprise of mandrel bent, stainless pipe work, delivering uncompromising flow, performance, and sound. Mandrel bending involves placing a mandrel inside the piping, before it is bent to shape. In comparison; cheaper press bending from other manufacturers squashes the tube as it is bent, reducing flow.
304 Grade Stainless Steel
Tired of your mild steel exhaust systems rusting out after a year or less? Time to shop for a stainless steel system? There’s still some things you need to be aware of. Our competitors typically advertise their exhaust products as stainless steel. Most don't stipulate the differences between 409 grade stainless steel and 304 stainless steel and many customers are fooled into an inferior product
Significant differences exist between the metals that make one better for performance exhaust applications than the other. Let us explain
The corrosion resistance of your exhaust depends on the content of chromium and nickel found in the alloy. It is 409 grade stainless steel is used by many manufactures due to its medium strength, formability and very low cost. Typically, 409 grade stainless steel has a chromium content of between 10.50% - 11.75% and a nickel content of less 0.50%.
Empire Performance exclusively uses 304 grade stainless steel for performance exhausts because of its strength and the fact it is impervious to rusting, because it has around 20% chromium and 10% nickel content in the alloy. However, because of its low ferrous content, it can develop a golden colour when exposed to high heat over time. In fact, the ferrous metal content is so low that magnets won’t stick to it, making the identification of 409 and 304 grade stainless steel very easy.
Put simply, 304 grade stainless is the highest quality material used in the auto exhaust game when strength, corrosion resistance and performance are at the top of your list of priorities.
Empire Performance exhausts are exclusively constructed from high quality 304 grade stainless steel. Type 304 steel is engineered with chromium and nickel content and proves to be resistant to oxidation, corrosion, and durability.
Together with a polished finish - it is the best choice for your car offering unrivaled corrosion resistance from exhaust emissions, moisture and salt exposure.
Bolt on Installation
All Empire Performance exhausts are designed to follow the same orientation and layout as the factory exhaust, making for easy bolt on installations. Our systems utilise the standard hanger locations, which means you don't have to use anything other than the factory rubbers.
All Empire Performance exhaust systems include a fitting kit comprising of all required bolts, gaskets and clamps.
At Empire Performance, we understand you need peace of mind. All Empire Performance exhaust systems are covered by a confidence inspiring 2 year warranty.