SPDZ1 VR30 Power Pack – Infiniti Q50 / Q60 / Nissan 400Z (3.0T Twin Turbo)

Complete Performance. Cooling. Control.

Take your VR30 platform to the next level with the ultimate SPDZ1 Power Pack, combining industry-leading tuning, airflow upgrades, and race-grade cooling into one complete solution. Designed for the Infiniti Q50, Q60, and 2023+ Nissan 400Z, this package delivers massive horsepower gains, improved reliability, and a driving experience that transforms your car from stock to seriously capable.

What’s Included

JB4 Bluetooth Performance Tuner

Unlock up to +100whp and +120wtq on a stock platform with this advanced plug-and-play tuning system. The JB4 works alongside your factory ECU to safely optimize boost, timing, and fueling, delivering strong, consistent power gains without the need for a flash tune.

With integrated CANbus technology, the JB4 reads critical engine data in real time — including air/fuel ratios, timing, throttle position, and more allowing for smarter, safer, and more precise tuning than basic systems.

Multiple maps support 91/93 octane, E85 blends, and race fuel, while features like boost-by-gear, code reading/clearing, and mobile Bluetooth control give you full command of your setup.

✔ No ECU flash required
✔ Fully removable with no trace

SPDZ1 3” High-Flow Lower Downpipes

Maximize exhaust flow and turbo efficiency with SPDZ1 stainless steel lower downpipes, engineered specifically for the VR30DDTT platform.

Featuring mandrel-bent construction and TIG-welded precision, these downpipes reduce restriction, resulting in faster turbo spool, sharper throttle response, and increased horsepower throughout the powerband.

✔ Direct bolt-on installation with included hardware
✔ High-grade polished stainless steel
✔ Aggressive, deep exhaust tone with enhanced turbo sound
✔ Compatible with Q50, Q60, and 400Z

SPDZ1 Race Cool Heavy Duty Heat Exchanger

Keep your power consistent under pressure with the SPDZ1 Race Cool Heat Exchanger, built to handle high boost and aggressive driving conditions.

With over 2.5X the cooling capacity of OEM and a 2.25” thick high-density core, this unit dramatically reduces intake temperatures, preventing heat soak and maintaining peak performance during pulls, track sessions, or hot climates.

✔ 100% all-aluminum construction
✔ Direct bolt-on fitment (no modification required)
✔ Reinforced end tanks for durability under high boost
✔ Corrosion-resistant coating for long-term reliability

Why Choose the SPDZ1 Power Pack?

This isn’t just a collection of parts — it’s a complete performance system:

• Power: Massive gains from JB4 + improved exhaust flow
• Response: Faster turbo spool and sharper throttle feel
• Reliability: Upgraded cooling to support higher boost levels
• Control: Real-time tuning and adjustability via JB4 Bluetooth

The Result

A fully transformed VR30 platform delivering more power, better consistency, and a more aggressive driving experience — all while maintaining OEM-level drivability.

Part numbers:

• SPDZ1-DP-VR30DDTT
• SPDZ1-HEX-Q5060
• JB4Q50/Q60VR30Bluetooth

Disclaimer:
Please verify that all items are compatible with your specific application prior to purchase. All Power Packs are sold as final sale and are not eligible for return or exchange.