Grimmspeed Subaru EJ25 2 Bolt Up-Pipeexpect spool times to improve by approximately 300-400 RPM, helping your turbo reach full boost faster and more efficiently. Reducing turbo lag significantly improves overall driving response and power delivery, especially in performance and track applications.
 
Adding a properly designed, thoroughly tested up-pipe is one of the most effective early mods you can make to your Subaru. At GrimmSpeed, our goal was to create a 2-bolt up-pipe that checks every box: precise fitment, long-term durability, strong performance gains — all while meeting modern emissions standards. The result is a SEMA Certified component engineered to deliver on all fronts.
 
WHAT'S INCLUDED:
(1x) GrimmSpeed 2-Bolt EJ Up-Pipe
(1x) GrimmSpeed Up-Pipe to Turbo Gasket
(1x) GrimmSpeed Lower Up-Pipe Gasket
(5x) M10x1.25 Turbo Mounting Studs
(2x) M10x1.25x40mm Yellow Zinc Bolts
(2x) M10x1.25 Serrated Flange Yellow Zinc Nuts
(2x) M10 Yellow Zinc Washers
(5x) M10x1.25 Yellow Zinc JIS Flange Nuts
(1x) GrimmSpeed Sticker
 
FITMENT:
The GrimmSpeed 2-Bolt Up-Pipe is designed for USDM Subaru EJ25 engines with an OEM-style 2-bolt header configuration. The official fitments include:
2004-2021 Subaru STI
2006-2014 Subaru WRX
2006-2013 Subaru Forester XT
2007-2009 Subaru Legacy GT
2007-2009 Subaru Outback XT
 
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