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Cobb's stainless steel cat-back exhaust uses mandrel-bent 304 stainless steel tubing throughout — mandrel bending maintains consistent tube diameter through bends rather than collapsing the inner radius
4bar high-pressure cap included
1 x PTFE Hose with -6an Female Fittings Pre-Installed
least restrictive Invidia cat-back
GrimmSpeed Equal Length Header - 2022-2025 Subaru WRX PDM_motor-builds Cobb's stainless steel cat-back exhaustEqual Length Header for the VB WRX: The Exhaust Manifold the FA24 Deserves The GrimmSpeed Equal Length Header for the 2022 2025 Subaru WRX replaces the factory unequal length exhaust manifold with a true equal length design consistent primary runner lengths from all four cylinders to the turbocharger inlet. The equal length design improves exhaust scavenging efficiency, eliminates inter cylinder pulse interference at the turbine inlet, and replaces