Which Boost Cooler system fits my vehicle?
| Scope of delivery |
Stage 1 TD Starter |
Stage 2 TD Low Boost |
Stage 2.5 TD PowerMax |
Stage 3 TD MPG-MAX |
|---|---|---|---|---|
| High Pressure Diaphragm Pump, 300 PSI | ✓ | ✓ | ✓ | ✓ |
| 2 Nozzles | ✓ | ✓ | ✓ | ✓ |
| Upgradable | ✓ | ✓ | ✓ | ✓ |
| 3l Tank | ✓ | ✓ | ✓ | ✓ |
| Low level indicator | ✓ | ✓ | ✓ | ✓ |
| Variable Injection | x | Boost press | Boost press | ✓ |
| 2-D Injection | x | x | ✓ | Boost press + EGT |
| Dual Stage Technology | x | x | Upgradable | ✓ |
| Cockpit display | x | x | ✓ | ✓ |
| 52 mm DIN cockpit display | x | x | ✓ | x |
| ProLine stainless steel braided line available | x | ✓ | ✓ | ✓ |
*** NEW! - ProLine Version ***
The latest development from SNOW Performance!
Complete Turbodiesel Water-Methanol Injection Kit with freely programmable 52mm OLED-Gauge and ProLine steel flex lines.
Integrated System Monitoring and Display of Boost Pressure, Fill Level and Injection Quantity. Upgradable to Dual Stage Technology.
Fits to all Turbodiesel Engines up to 3.5bar boost.
*** NEW! - AVAILABLE NOW! ***
Complete Water-Methanol Injection kit with variable injection and LCD-Display.
The Boost Cooler Stage 2 TD water-meth kit progressively injects more or less water or water/alcohol, according to boost pressure. Includes a simple handheld display screen to set the injection points which can be remotely mounted or placed in a convenient place to access based on your application.
Ideal for all Turbdiesels up to 2.1 Bar boost. Typcially used on VAG TDI, BMW, PSA HDi and similar engines.
*** NEW! - ProLine Version ***
Complete Water-Methanol Injection kit with variable injection, LCD-Display and ProLine Steel Flex Lines.
The Boost Cooler Stage 2 TD water-meth kit progressively injects more or less water or water/alcohol, according to boost pressure. Includes a simple handheld display screen to set the injection points which can be remotely mounted or placed in a convenient place to access based on your application.
Ideal for all Turbdiesels up to 2.1 Bar boost. Typcially used on VAG TDI, BMW, PSA HDi and similar engines.
*** OUR TOP SELLER! ***
The latest development from SNOW Performance!
Complete Water-Methanol Injection Kit with freely programmable 52mm OLED-Gauge.
Integrated System Monitoring and Display of Boost Pressure, Fill Level and Injection Quantity. Upgradable to Dual Stage Technology.
Fits to all Turbodiesel Engines up to 3.5bar boost.
*** STARTER KIT ***
Complete Starterkit with 300psi Pumpsystem and adjustable boost pressure switch.
The operation is very simple: The Boost Cooler system starts injecting when the boost switch reaches the user-adjustable point and it injects a fixed amount of fluid through the nozzle until the switch opens again.
Upgradeable to Stage 2 and Stage 3 Systems.
Our Top-Model for every Turbodiesel.
The Boost Cooler Stage 3 TD creates a 2D-delivery map based boost and Exhaust Gas Temperature. Easy programmable LCD-display new Dual Stage Injection Technology.
The Stage 3 TD is the only water injection system on the market that has a positive effect on fuel consumption and emissions in all load ranges. Successfully tested by the U.S. Department of Energy and multiple SEMA Award winner.
Particularly recommended for all towing vehicles, mobile homes, commercial vehicles / trucks, marine and defense technology.
*** NEW! - ProLine Version ***
Our Top-Model for every Turbodiesel. - The Boost Cooler Stage 3 TD creates a 2D-delivery map based boost and Exhaust Gas Temperature. Easy programmable LCD-display new Dual Stage Injection Technology.
The Stage 3 TD is the only water injection system on the market that has a positive effect on fuel consumption and emissions in all load ranges. Successfully tested by the U.S. Department of Energy and multiple SEMA Award winner.
Particularly recommended for all towing vehicles, mobile homes, commercial vehicles / trucks, marine and defense technology.
Water-Methanol Injection for the VW Golf IV 1.9 TDI
(ARL unit-injector, 96 kW / 130 hp)
The ARL engine in the Golf IV (1.9 TDI with unit-injector / Pumpe-Düse injection) is one of the most popular diesel tuning engines across central Europe — robust hardware, generous response to software stages up to 170+ hp. At moderate tuning stages the diesel combustion shifts into a hotter regime: exhaust gas temperatures above 800 °C under full load stress the turbocharger, manifold and DPF (where fitted). Water-methanol injection is one of the most effective levers on a TDI to bring EGT back down and reclaim thermal reserve — while simultaneously adding power.
Recommended configuration for the Golf IV TDI: We recommend the Stage 2 TD variant — purpose-built for turbodiesel, with variable boost-pressure-dependent injection. Stage 1 TD is the lean entry option for OEM software.
Effect in numbers: −100 to −300 °C exhaust gas temperature under full load (diesel-specific, much higher EGT reduction than on petrol engines), additional +5 to +15 hp from the water-methanol effect itself, reduced soot formation, significantly higher thermal reserve for turbocharger and exhaust system.
Boost Cooler Water Injection
– made for your vehicle
Performance water-methanol injection with the classic Snow Performance Boost Cooler systems. Reduces intake air temperature by up to −60 °C, enables +10 to +25 % more power without thermal engine stress. Direct from the manufacturer — European Headquarters for Snow Performance.
Direct manufacturer support
from Hamburg
S-Performance GmbH is the European Headquarters for Snow Performance. English-speaking support available, pre-sales technical advice, warranty, shipping to over 220 countries.
Got questions about your vehicle or one of the systems? Get in touch with our support team: contact form.
Boost Cooler vs. Boost Cooler ProLine
Standard Boost Cooler kits ship with red pressure hoses and push-on fittings. The ProLine variant uses stainless steel braided lines and AN fittings - motorsport-grade pressure resistance, higher heat tolerance.



