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 | ✓ | ✓ | ✓ |
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.
