2018 Subaru WRX STI parts
Aftermarket parts with a verified ACES application to the 2018 Subaru WRX STI. Narrow by submodel and engine to see exactly what bolts on.
Submodel and engine
2 configurations5 parts for 2018 Subaru WRX STI
Browse everything →- MagnaFlow Exhaust Products
MagnaFlow Competition Series Cat-Back Performance Exhaust System 19361
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MagnaFlow Competition Series Axle Back Performance Exhaust System 19362
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MagnaFlow xMOD Series Cat-Back Performance Exhaust System 19547
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MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 49160
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MagnaFlow 2015-2021 Subaru WRX STI 2.5L / 2008-2014 Subaru Impreza WRX STI 2.5L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 49161