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Black E-coated for rust resistance
Precision machined grooves
however this updated product is easier to install
The kit covers a great section of hardware in the engine
Experience the perfect shift with GrimmSpeed's Stubby Knobs
Cobb Cat-back Exhaust Hardware kit - 2011-2021 Subaru WRX / STI Sedan Hyundai-Veloster-N-2019 Black E-coated for rust resistanceBetter Airflow for the GV VA WRX STI Done Right The Cobb intake upgrade for the 2011 2021 Subaru WRX STI improves airflow to the turbocharger over the factory setup by reducing restriction in the intake path. Less restriction means the turbocharger works with a stronger air supply, building boost from a better foundation. Designed Around the Cobb OTS Maps Every Cobb intake product for the GV VA WRX STI is developed alongside the OTS maps on the