Snow Performance Stage 2 Boost Cooler Progressive Water Injection Kit (WRX STI 05-14)

Description

Stage 2 Boost Cooler for Subaru WRX STI 2005–2014 Overview

The Snow Performance Stage 2 Boost Cooler WRX STI 05–14 is a progressive water/methanol injection kit designed for Subaru WRX STI 2005–2014 (2.5 L EJ25). It lowers intake charge temperatures, suppresses detonation, and increases effective octane levels. The integrated VC-50 controller automatically adjusts injection delivery based on boost pressure, enabling tuners to safely run higher boost and ignition timing. Ideal for performance enthusiasts seeking both power and reliability, this Stage 2 WRX STI water-methanol system ensures long-term thermal control for turbocharged Subaru platforms.

Key Features

• Progressive injection control via VC-50 boost-based controller
• Boost gauge + controller in one unit (52 mm, OLED with 7 colors)
• Adjustable start and full delivery injection points
• Custom throttle-body spacer injection plate for WRX STI EJ25 engines
• Braided stainless steel dosing line with 4AN fittings
• HyperSonic nozzles for ultra-fine atomization
• 3-litre reservoir (upgrade options available)
• Integrated low-level sensor and prime function
• Complete installation hardware included in the Stage 2 kit

Specifications

• Part / Model: Snow Performance Stage 2 Boost Cooler WRX STI 05–14
• Model / SKU: SNO-2110-BRD
• Application: Subaru WRX STI 2005–2014 (2.5 L EJ25)
• Injection Control: VC-50 progressive, boost-based mapping
• Controller Size: 52 mm gauge, OLED display (7 color options)
• Fittings / Lines: Braided stainless steel, 4AN fittings
• Nozzles: HyperSonic dual-chamber atomization nozzles
• Reservoir: 3 L tank (upgradable)
• Boost Range: Up to ~2.1 bar (≈30.5 psi)
• Shipping Weight: ~11.9 lb (≈5.4 kg)

What’s in the Box

• VC-50 electronic controller with harness
• MAP sensor
• HyperSonic atomization nozzles
• Braided stainless steel line + 4AN fittings
• Throttle-body spacer injection plate
• 3 L reservoir tank with low-level sensor
• Prime function wiring
• Mounting hardware, brackets, clamps
• Full instruction manual (English)

Compatibility

• Subaru WRX STI 2005–2014, 2.5 L (EJ25)
• Works with OEM drive-by-wire throttle bodies
• Note: Some sources list 2004 STI. Confirm fitment before ordering for 2004 models.

Delivery & Lead Times

• Stock availability varies—typical overseas freight 1–3 weeks
• Lead times may extend during high-demand or customs delays
• Local AU / US dealers may provide faster dispatch if in stock

Professional Fitting Service on the Sunshine Coast

We offer professional installation services for the Snow Performance Stage 2 Boost Cooler WRX STI 05–14 at our Sunshine Coast facility. Our expert technicians ensure correct calibration, leak-free setup, and seamless integration with your Subaru’s ECU. Contact Sunshine Coast Diesel Tuning today to book a fitting appointment and discuss post-install tuning options.