Korsh by SSI Unequal Length Headers - Subaru WRX / STI / Forester / Liberty (EJ20/25)

Korsh by SSI Unequal Length Headers – Subaru WRX / STI / Forester XT / Liberty GT (EJ20/EJ25)

Application: Subaru WRX 2002–2014, STI 2004–2021, Liberty GT 2005–2009, Forester XT 2004–2013 (EJ20/EJ25 turbo)
Part Type: Unequal length exhaust headers with up-pipe
Part Number: KOR-EXH-UEL-001

Korsh by SSI unequal length headers are built for turbocharged EJ20 and EJ25 Subarus. The unequal length layout improves exhaust scavenging over the factory manifold for sharper throttle response, quicker turbo spool and stronger delivery across the rev range – while keeping the classic Subaru boxer rumble.

Mandrel-bent, TIG-welded 304 stainless steel tubes and wax cast flanges give a leak-free fit that stands up to sustained heat on the street and on track. A slip joint allows for thermal expansion.

Why Korsh by SSI?

• 304 Stainless Steel – Mandrel-bent, TIG-welded tubes with 2mm wall thickness.
• Wax Cast Flanges – Precise, leak-free fitment that resists warping.
• Unequal Length Design – Keeps the iconic boxer rumble.
• Slip Joint – Allows for thermal expansion.
• 2-Year Warranty – Backed by Korsh by SSI.

What's Included

• 1 x Unequal length exhaust manifold (304 stainless steel)
• 1 x Up-pipe
• Multi-layer steel gaskets (header and up-pipe)
• Copper flange nuts
• Zinc-plated bolts

Important Notes

• Retains the Subaru boxer rumble exhaust note.
• 2002–2005 WRX: requires a 2.5L STI oil pan/sump.
• 2006–2007 WRX: requires an STI oil pan and STI oil cooler.
• Some cars may need minor U-frame clearance trimming.

Vehicle Fitment

• Subaru WRX 2002–2014
• Subaru STI 2004–2021
• Subaru Liberty GT 2005–2009
• Subaru Forester XT 2004–2013

Not sure if these suit your car? Email sales@coore.com.au and our team will confirm fitment.