Subaru WRX STI Water Injection Systems
Water injection systems for the Subaru WRX STI span the 2015–2021 model years, with kits designed for forced-induction setups where intake charge cooling is a priority. The range here centers on water/methanol injection systems assembled as complete kits. Choose your model year above and this page keeps only the water injection systems that fit your Subaru WRX STI. Each listing is matched to our vehicle fitment data before it appears here.
Snow Performance SNO-2182-BRD Stage 2 Boost Cooler Water Methanol Injection Kit 2015+ Subaru WRX
Snow Performance SNO-2182-BRD-T Stage Boost Cooler Water-Methanol Injection Kit - 2
Snow Performance SNO-40082 Throttle Body Spacer Injection Plate for 2015+ Subaru WRX
What's here for your Subaru WRX STI
- Water/methanol injection systems and complete performance kits
The widest selection of water injection systems for the Subaru WRX STI here comes from Snow Performance, a specialist in water/methanol injection technology. Other categories Subaru WRX STI owners shop for: Subaru WRX STI Springs and Suspension Parts, Subaru WRX STI Fluids and Lubricants and Subaru WRX STI Shocks and Struts, or browse all Subaru WRX STI parts and accessories.