Spdz1 Nissan-Infiniti VR30 Power Pack Components
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
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.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.