Tomei Expreme Equal Length Exhaust Manifold - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI, etc.) PDM_brake-system the speed-sensitive adjustment is only

the speed-sensitive adjustment is only available with optional GPS kit used

Dynamics flow matched to within 1-2% with a flow report

Stainless backing plate

and keeps the intake path clean

Tomei Expreme Equal Length Exhaust Manifold - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI, etc.) PDM_brake-system the speed-sensitive adjustment is onlyThe Equal Length Exhaust Manifold will improve the power and the performance in the Subaru WRX STI. Tomei Expreme Equal Length Exhaust Manifold Equal Length Exhaust Manifold Specs: 4 2 1 Isometric design delivers optimum results for better top end performance All equal length primaries Stronger and more precise lost wax collector to eliminate cracking in the welded weak points Dry racing sound Lightweight and rust proof SUS 304 stainless steel