Manufacturers

Direct Port Injection

Direct port injection delivers perfectly balanced octane benefits to each cylinder. If your high-output engine is equipped with a big turbo, or if you're on the ragged edge with a wee charger, you'll realize serious gains. Turn up the boost and advance ignition timing with supreme confidence. Run a 100 octane file on even weak 91 octane gasoline. -easily.

USRT direct port on Audi TT 1.8T 20v

USRT has promoted dual nozzle mounting since innovating the setup over ten years ago. As we've made common knowledge, this is the simplest way to achieve both intake cooling and significant octane boost. However, distribution is never perfect from the post-throttle nozzle.

Even the tiniest spray droplets have mass. Inertia carries more of these particles to the cylinders farther away from the throttle. Delivery is unbalanced. When the post-throttle nozzle is small (e.g. 60cc), the variance per cylinder is not large. However, with larger nozzles, it becomes a far more critical issue. Aggressive tuners are often frustrated by insufficient protection "here" and a combustion-quenching oversaturation "there". The only safe response is to dial back the boost/spark timing to satisfy the most vulnerable chamber.

Meanwhile, direct port guarantees that each cylinder receives exactly the same spray volume.
 

Because the mist is emitted so close to the engine, no spray is used more efficiently and works much faster to suppress detonation. However, tuning is definitely made more sensitive for the same reason. To ensure that the precise amount of fluid is delivered, we highly recommend our respected Tuner's Pressure Gauge. Also, so that air cooling can begin well before octane is eventually needed, we also recommend a "Boost Trigga" (adjustable pressure switch). This simplifies tuning, conserves fluid, and produces lots more torque once the turbo spools.

BMW has implemented this technology since 2015 with the M4 GTS.

Nozzle information:
Please contact us for help to coordinate nozzle sizes, placement positions, triggering points, etc. The stakes are high when pushing hard. Trial and error guesswork is unwise when our our tech experts can help you get it right from the very beginning.

BMW M3 GTS direct port water methanol injection USRT

USRT Direct Port System

USRT Direct Port System

Perfect your octane delivery and get the fueling you need. Mist distribution will be 100% even with each cylinder receiving the expected amount of...
$299.00
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ATS-V "TESTOSterone" DP6+4

ATS-V "TESTOSterone" DP6+4

ATS-V Direct Port6 plus 2x pre-compressor and 2x volute. HAMMER pump, filtered outlet system, 600psi gauge.  
$1,735.00
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MUSTANG Procharger DP8+2

MUSTANG Procharger DP8+2

Now, let's tame V8 horsepower with a 8 direct port nozzles and another pair added for staged air cooling. Configured for the Gen3 Coyote engine,...
$699.00
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Artic Cat DP3+1

Artic Cat DP3+1

The stock 200hp just wasn't enough... A Direct Port3+1 kit helps makes 320hp easy! That's one nozzle per intake runner plus an air cooling...
$199.00
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Volvo DP5+2

Volvo DP5+2

When you've got an already overachieving Volvo with 2.3l 5-cylinder, what do you do with it? TURN UP THE BOOST! This one will require a single...
$375.00
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Boost Trigga

Boost Trigga

Need a simple and dependable way to activate your direct port or pre-compressor water methanol injection system? Or, perhaps you'd like to turn...
$55.00
Add:
Audi S4 DP8 (RACE Kit)

Audi S4 DP8 (RACE Kit)

An 8-port injection system with elite control features, it's first going into a built Audi S4 V8 Turbo (B7). This self-built beast lurks among...

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BigUPPER (Compression Cooler)

BigUPPER (Compression Cooler)

YOUR TURBO DOESN'T FLOW ENOUGH AIR? It runs out of steam up top? We're going to fix that by making some. Hot air takes up more space than...
$65.00
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BigUPPER K03 (Compression Cooler)

BigUPPER K03 (Compression Cooler)

FLOW MORE FROM YOUR 1.8T's TINY K03 TURBO:   Hot air takes up more space than cold air. Cooling it inside the compressor with water/methanol...

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