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GrimmSpeed Unequal Length Headers - 2002-2014 WRX* / 2004-2021 STI | 113026

SKU: GRM 113026

QUICK SPECS:

  • 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 - Ensures 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”
  • . . . Show More >



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