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Air and Fuel Delivery > Water Injection System and Components
Water Injection Reservoir
Water / Methanol Injection Flow Gauge
Water / Methanol Injection Mount
Water / Methanol Injection Nozzle
Water / Methanol Injection Pump
Water / Methanol Injection System
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Aluminum Bungs (1)
Fittings (2)
Fuel Fittings and Adapters (2)
Hardware - Singles (1)
Injection Fluid (2)
Injection Pump Components (1)
Injection Pumps & Controllers (10)
Nitrous Filters (1)
Reservoirs (9)
Sensor Fittings and Adapters (1)
Steel Bungs (1)
Vehicle Parts (1)
Water / Methanol Injection (29)
Water Meth Components (14)
Water Meth Kits (24)
Water Meth Nozzles (7)
Water Meth Plates (4)
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Nitrous Express (47)
Snow Performance (61)
VP Racing (2)
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Water Injection System and Components (110)
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Injection Pumps & Controllers (10)
Nitrous Filters (1)
Reservoirs (9)
Sensor Fittings and Adapters (1)
Steel Bungs (1)
Vehicle Parts (1)
Water / Methanol Injection (29)
Water Meth Components (14)
Water Meth Kits (24)
Water Meth Nozzles (7)
Water Meth Plates (4)
Brand
Nitrous Express (47)
Snow Performance (61)
VP Racing (2)
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Air and Fuel Delivery (110)
Product Subcategory
Water Injection System and Components (110)
Year
2015 (1)
2016 (1)
2017 (1)
2018 (1)
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Subaru (1)
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WRX STI (1)
Submodel
Base (1)
Launch Edition (1)
Limited (1)
S209 (1)
Series.HyperBlue (1)
Sport (1)
Sport-tech (1)
STI (1)
Type RA (1)
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to
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Base
129872 (1)
134792 (1)
140564 (1)
143502 (1)
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110 products
+ Quick add
Nitrous Express
| MPN: 15131H
Nitrous Express Direct Port Water Injection 6 Cyl Stage 3 w/Hardlines 15131H
Sale price
$2,241.56 USD
+ Quick add
Nitrous Express
| MPN: 15132H
Nitrous Express Direct Port Water Injection 8 Cyl Stage 3 w/Hardlines 15132H
Sale price
$1,916.68 USD
+ Quick add
Nitrous Express
| MPN: 15121H
Nitrous Express Direct Port Water Injection 6 Cyl Stage 1 w/Hardlines 15121H
Sale price
$1,440.00 USD
+ Quick add
Nitrous Express
| MPN: 15121
Nitrous Express Direct Port Water Injection 6 Cyl Stage 1 15121
Sale price
$1,483.75 USD
+ Quick add
Nitrous Express
| MPN: 15140
Nitrous Express Pumpless Water Injection 4150 Carburetor Plate 15140
Sale price
$1,255.63 USD
+ Quick add
Nitrous Express
| MPN: 15141
Nitrous Express Pumpless Water Injection 4500 Carburetor Plate 15141
Sale price
$1,255.63 USD
+ Quick add
Nitrous Express
| MPN: 15136
Nitrous Express Pumpless Direct Port Water Injection 6 Cyl 15136
Sale price
$1,790.00 USD
+ Quick add
Nitrous Express
| MPN: 15122
Nitrous Express Direct Port Water Injection 8 Cyl Stage 1 15122
Sale price
$1,750.94 USD
+ Quick add
Nitrous Express
| MPN: 15134
Nitrous Express Pumpless Direct Port Water Injection 4 Cyl 15134
Sale price
$1,550.94 USD
+ Quick add
Nitrous Express
| MPN: 15125
Nitrous Express Direct Port Water Injection 4 Cyl Stage 2 15125
Sale price
$1,441.56 USD
+ Quick add
Nitrous Express
| MPN: 15127
Nitrous Express Direct Port Water Injection 8 Cyl Stage 2 15127
Sale price
$1,548.71 USD
+ Quick add
Nitrous Express
| MPN: 15120
Nitrous Express Direct Port Water Injection 4 Cyl Stage 1 15120
Sale price
$1,236.88 USD
+ Quick add
Nitrous Express
| MPN: 15126
Nitrous Express Direct Port Water Injection 6 Cyl Stage 2 15126
Sale price
$1,725.94 USD
+ Quick add
Nitrous Express
| MPN: 15130
Nitrous Express Direct Port Water Injection 4 Cyl Stage 3 15130
Sale price
$1,420.53 USD
+ Quick add
Nitrous Express
| MPN: 15131
Nitrous Express Direct Port Water Injection 6 Cyl Stage 3 15131
Sale price
$2,308.75 USD
+ Quick add
Nitrous Express
| MPN: 15132
Nitrous Express Direct Port Water Injection 8 Cyl Stage 3 15132
Sale price
$1,974.11 USD
+ Quick add
Nitrous Express
| MPN: 15137
Nitrous Express Pumpless Direct Port Water Injection 8 Cyl 15137
Sale price
$1,490.64 USD
+ Quick add
Nitrous Express
| MPN: 15033
Nitrous Express Water Injection Diesel MPG Max 15033
Sale price
$1,420.36 USD
+ Quick add
Nitrous Express
| MPN: 15031
Nitrous Express Water Injection Diesel Stage II 15031
Sale price
$710.38 USD
+ Quick add
Nitrous Express
| MPN: 15051
Nitrous Express Water Injection 7 Gallon Reservoir (w/Bracket Solenoid & Hose) (15L x 17H x 9W) 15051
Sale price
$272.04 USD
+ Quick add
Nitrous Express
| MPN: 15056
Nitrous Express Water Injection Nozzle Mounting Adapter for Hose 15056
Sale price
$30.88 USD
Sold out
Nitrous Express
| MPN: 15054
Nitrous Express Water Injection Carb Plate 15054
Sale price
$66.85 USD
+ Quick add
Nitrous Express
| MPN: 15023
Nitrous Express Water Injection Gas Stage II GM MAF 15023
Sale price
$952.50 USD
+ Quick add
Nitrous Express
| MPN: 15030
Nitrous Express Water Injection Diesel Stage I 15030
Sale price
$979.06 USD
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