The Infiniti platform is one of the most rewarding to build when it is done in the right order. The VR30DDTT twin-turbo in the Q50 and Q60 hides a lot of headroom behind a conservative factory calibration, and the naturally aspirated VQ responds to good breathing mods and a proper tune. APA Custom Shop is an owner-run performance and tuning shop in Queen Creek, Arizona, with decades of combined automotive and motorsport experience. We plan Infiniti builds around what you actually want from the car, quote the exact combination of parts and labor, and back it up with in-house dyno time so you know what you are getting.
What We Build for the VR30 and VQ
We treat every Infiniti as its own project, whether you want a daily driver that wakes up on the on-ramp or a dedicated build chasing bigger numbers. On the VR30 twin-turbo we focus on airflow, cooling, and calibration; on the VQ we work through breathing and tuning before stepping into forced induction. Everything is done under one roof, from diagnostics to fabrication to the final dyno pull.
We are an honest, gearhead-run shop, so we will tell you straight if a mod does not make sense for your goals or your fuel. If a part is better suited to a different stage of the build, we will say so before you spend the money.
- In-house Dynojet dyno testing and custom tuning
- ECU tuning in the shop or remote, depending on your platform
- High-flow intakes, intercooler upgrades, and downpipes for the VR30
- Long-tube headers and full exhaust work for the VQ
- Supercharger and turbo installs and supporting fabrication
- Cooling and fuel-system support to keep power reliable
- Suspension, brakes, and alignments to match the added power
- Full diagnostics and hands-on troubleshooting
How We Stage an Infiniti Build
Think of the build in stages rather than a single leap. A strong foundation tune plus a few smart parts often transforms how the car drives before you ever touch boost or forced induction. From there we layer in supporting mods so the setup stays healthy as power climbs. These stages are a starting framework, not fixed off-the-shelf kits, since the right path depends on your car, your fuel, and your goals.
On the VR30 the twin-turbo rewards a good tune paired with parts that manage heat and airflow, because the factory setup runs warm under sustained load. On the VQ the usual path is breathing mods and a tune first, then a supercharger or turbo kit when you want a real jump in power.
- Stage one: dialed-in ECU tune plus intake and exhaust breathing
- Stage two: intercooler, downpipes, cooling, and fuel support with a retune on the VR30
- Stage three: forced induction or a larger turbo setup with built supporting hardware and full custom dyno tuning
Why the Tune Matters Most
The ECU controls boost, fueling, and timing, so bolt-ons only reach their potential once the calibration catches up to them. Parts alone can leave power on the table or, worse, run the engine in a way you do not want long term. A custom tune on our in-house Dynojet lets us verify what the car is actually doing under load instead of guessing.
This matters even more on the twin-turbo VR30, where heat soak and a cautious factory calibration hold the platform back until it is properly tuned. We calibrate to your fuel, whether that is pump gas or E85 where available, and confirm the results on the dyno. Because ECU support changes by year and platform, ask us about the current tuning solution for your exact car when you call.
Get Your Exact Infiniti Build Quoted
No two Infiniti builds are the same, so we do not hand out one-size-fits-all pricing or made-up power figures. Tell us your car, your fuel, and what you want out of it, and we will map a realistic plan and quote the exact build. Ask about current parts and options, since availability and the best combinations shift over time.
Call APA Custom Shop at (602) 762-4916 or stop by 22375 S Scotland Ct Suite 105 in Queen Creek. We are open Monday through Friday, 8:00 to 5:30, and happy to talk through your VR30 or VQ project before you commit to anything.