Header / Up-Pipe Package for 2004-2021 Subaru STI & 2008-2014 Subaru WRX by GrimmSpeed
The EJ platform has a lot to offer—but it’s held back by a restrictive, cast manifold and a bottlenecked stock up-pipe. This Header / Up-Pipe Combo is built to fix that. By pairing an Unequal Length EJ Header with the GrimmSpeed 2-Bolt Up-Pipe, you’re opening up the flow path from the cylinder heads to the turbo with components designed for performance, durability, and that signature Subaru rumble.
Features
- Mandrel-bent, hand-welded, and equalized in performance without losing the classic boxer sound
- 304 stainless with thick flanges
- TIG-welded 14-gauge stainless pipe 2-Bolt Up-Pipe
Benefits
- Designed to hold up under extreme temps and boost
- Smooth transitions for maximum flow and minimal turbulence
