Korsh - Unequal Length headers: Subaru WRX STI/ LGT/FOZ EJ20/25
Korsh

Korsh - Unequal Length headers: Subaru WRX STI/ LGT/FOZ EJ20/25

In the rangePart no. KOR-EXH-UEL-001

Fitment not listed

The supplier does not state which cars this fits, and we would rather say so than guess. Ask us with your car and we will check before you order.

Configuration
Unequal length
Material
304 stainless steel, mandrel bent, TIG-welded
Runner diameter
42.7mm (2mm wall)
Category
Intake & exhaust
All 10 specifications ↓

Want this, or something like it?

We can’t take an order yet — supply is still being arranged. Ask, and we will tell you what we know about it and let you know when it is available. What people ask for is what we range first.

  • Fitment is confirmed, not guessed

    A chassis is listed only where the part is on one of our cars or on the manufacturer’s own application list.

  • Some of this is on our cars

    Parts marked On our cars are ones we race. Those descriptions are written from running them, not from a brochure.

  • A person answers

    Enquiries go to Michael, who races the cars. Tell us the car and what you are trying to fix.

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Specifications

Brand
Korsh
Part number
KOR-EXH-UEL-001
Configuration
Unequal length
Material
304 stainless steel, mandrel bent, TIG-welded
Runner diameter
42.7mm (2mm wall)
Uppipe diameter
60.5mm (2mm wall)
Flange
Wax cast stainless, 3-bolt uppipe
In the box
Manifold, uppipe, copper flange nuts, MLS gaskets, zinc-plated bolts
Requires
STI oil pan (02-05 WRX); + STI oil cooler (06-07 WRX)
Category
Intake & exhaust

Figures as published for this part; fitment is only what we have confirmed. Check critical dimensions against your car before ordering.

About this part

Korsh's unequal length headers (KOR-EXH-UEL-001) are made for the WRX, STI, LGT and FOZ on the EJ20 and EJ25, in a mandrel-bent, TIG-welded 304 stainless steel unequal-length configuration. The runner is 42.7mm and the up-pipe is 60.5mm, each with a 2mm wall, on a wax-cast stainless flange with a 3-bolt up-pipe joint. The kit includes the manifold, up-pipe, copper flange nuts, MLS gaskets and zinc-plated bolts. On the WRX it needs the STI oil pan on 2002–2005 cars, and the STI oil cooler on 2006–2007 cars.

We have not run this part ourselves — the ones we have are marked on our cars.

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