HKS Exhaust Manifold For Subaru STI (2008-2021)

HKS Stainless Steel Exhaust Manifold

Experience enhanced exhaust performance with the HKS Equal Length Header (Exhaust Manifold) designed for the Subaru EJ25 motor. Compatible with the 08-14 Impreza WRX/STI and the newer 15+ STI models, this manifold replaces the OEM header, offering improved flow dynamics and performance. Employing a 4-1 setup, it enhances both low and high-range performance, while mid-range performance remains at OEM levels. This configuration ensures a balanced enhancement across the RPM range. With consistent factors, the HKS Equal Length Header optimizes exhaust flow, resulting in improved spool and creating a win-win situation for enthusiasts seeking increased power from their OEM turbo setup or utilizing OEM-style 2-bolt flanged pipes. Moreover, this manifold proves to be a valuable addition for those aiming to reduce Exhaust Gas Temperature (EGT).

DETAILS:

• Made using SUH409 stainless steel materials
• Designed to optimize exhaust flow while increasing spool
• Improves horsepower
• Improves torque
• Produces an aggressive exhaust note
• Accepts the stock up-pipe and aftermarket up-pipes with a stock-like flange
• Includes new gaskets, hardware, and heat wrap, and worm clamps

Available for:

SUBARU IMPREZA WRX 4D 2011-2014 AWD

SUBARU IMPREZA WRX STI 5D 2008-2014 AWD

SUBARU WRX STI 4D(VA) 2015-2021 AWD

SUBARU IMPREZA WRX STI 4D 2004-2007 AWD

SUBARU IMPREZA WRX STI 4D 2011-2014 AWD

SUBARU IMPREZA 2.5i GT 5D 2009-2010 AWD

SUBARU IMPREZA 2.5i GT 4D 2009-2010 AWD

SUBARU IMPREZA WRX 5D 2008-2014 AWD