ALPHA 4 Performance Package
430+ WHP on pump gas. The bolt-on foundation every serious VR30 build starts with.
Price range: $1,720.59 through $2,849.49
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California Residents: Prop 65 Warning
Additional information
| Intake Selection | Enclosed Cold Air Intake, Open 80mm Intakes |
|---|---|
| Downpipe Selection | GESI Catted, Race Catless |
Race / Competition / International Use Only
This product is designed for installation on a race-only vehicle, defined as a vehicle that is used exclusively for competition and that cannot be licensed or registered for use on the public roads and highways within the United States. This product is not available for sale on emissions-controlled vehicles within the United States without a completed AMS Race Waiver form. International users outside of the United States should act in accordance with their local laws and regulations.
With 25 years of documented research and development in the forced induction field, AMS Performance has proven itself as the powerhouse in the automotive aftermarket. Our award winning performance systems are what all others are measured by.
INFINITI left power on the table. The ALPHA 4 takes it back. Over 430 wheel horsepower from a hard parts package built around the three things that actually move the needle on a twin turbo VR30: how the turbos breathe, how the exhaust leaves, and how the charge air stays cool when you keep your foot in it.
This is the entry point to the ALPHA lineup. Pump gas, no flex fuel, no fuel system work, no turbo swap. What ships is hard parts, and hard parts are only half of it. Take the box to your favorite speed shop, get it bolted on, and let your tuner write the calibration that unlocks it. Or skip the coordination entirely and contact us for a complete turnkey solution, installed by our technicians, calibrated by the team that has been developing VR30 tunes since the platform launched, and validated on our in-house dyno before you get the keys back.
Either path puts the same engineering on your car. The calibration is what turns it into 430 wheel horsepower, so plan for it and the ALPHA 4 delivers exactly what it promises.
What the ALPHA 4 Delivers
- –Over 430 WHP and 475 lb-ft on pump gas with supporting calibration
- –Earlier boost onset and faster spool from reduced exhaust restriction
- –Consistent charge air temperatures through repeat pulls
- –Sharper throttle response and improved drivability
- –A real twin turbo soundtrack from the induction side
What Is In The Box
| AMS VR30 Intake System | Your choice Enclosed cold air or open 80mm |
| AMS VR30 Lower Downpipes | Your choice GESI catted or race catless |
| AMS VR30 Heat Exchanger | Included with every configuration |
| ALPHA 4 Decal Pair | Included with every configuration |
Build It Your Way
| Option | What it does | Best for |
|---|---|---|
| Enclosed Cold Air | Seals the filters off from hot underhood air, so inlet temps stay low and repeatable | Street |
| Open 80mm | Trades that isolation for maximum flow area and the most aggressive induction note | Track |
| Option | What it does | Best for |
|---|---|---|
| GESI Catted | Flows well while staying quiet and emissions friendly | Street |
| Race Catless | Gives up nothing to restriction. Off-road use only | Track |
Engineered, Not Adapted
Most companies design a part to fit the space. The SnailWorks Engineering Team designs to dominate it. Every component in the ALPHA 4 was 3D scanned against the factory chassis, validated on our own dyno, and tested back to back until the data said it was finished. Mandrel bent stainless downpipes hold exhaust gas velocity instead of building back pressure. Sealed airboxes keep the turbos fed with air that has not been sitting against the exhaust manifolds. The heat exchanger holds intake temperatures where the calibration expects them, pull after pull. That is the difference between a part that fits and a part that performs.
The ALPHA Path
The ALPHA 4 is step one, not a dead end. The same intake, lower downpipes, and heat exchanger carry straight into the ALPHA 5.
- Installation labor is not included in the listed price, but can be completed by our trained technicians at our facility for an additional fee. Please contact our sales team directly for details and scheduling.
- Calibration required to reach advertised power, sold separately.
- 93 octane fuel is assumed for all stated power and torque estimates. Lower octanes will produce lower results.
- Horsepower and torque numbers, quarter mile times, 0-60 mph, 60-130 mph and other recorded times are approximate and can vary significantly depending on numerous factors such as your dynamometer model, ambient temperature, elevation, tire selection, road surface material, fuel octane and quality, and vehicle weight, among many others. The advertised numbers herein are based on optimal conditions and utilizing proper supporting modifications, but are generally attainable results by an average customer. Your results may vary.
