GrimmSpeed Unequal Length Exhaust Header Subaru STI 2004-2021

Features:

Innovative 1.5 to 1 Unequal Length Runners - Each bank of runners is equal length, allowing for equal length performance with an unequal length sound
4-into-1 Low-Angle Merge Cast Collector - Ensure minimal restriction and maximum performance
Smooth, Restriction-Free Flow Throughout - Single piece mandrel bent tubing welded to a single piece merge collector removes unwanted ''steps''
Substantial Power/Torque Gains - +25hp and +25ft/lbs of torque over stock
Quickest Spooling Aftermarket Header - Faster spool and more power compared to the competition
No Tune Required - Safe to run, just bolt on
Gaskets and Hardware Included - Everything you need to get installed and on the road
Designed To Fit With Aftermarket Oil Pans - Fits with the STI oil pan or popular aftermarket options
Full 304 Stainless Steel Construction - 1/2'' flanges and 14ga runners for extreme durability
Manufactured and Welded In The USA For consistency and top quality control

Fitment:

Subaru STI 2004-2021

Other Part Numbers:

GrimmSpeed #grm113026