As an Infiniti Q60 owner, I’ve always looked for ways to unlock the car’s full potential without sacrificing reliability. After months of reading forums and watching dyno videos, I settled on the Injen Power-Flow Intake system. Below I’ll share my real-world experience, installation details, and the performance gains that have made my Q60 feel like a completely different machine.

Why the Injen Power-Flow Intake Stands Out

The Injen Power-Flow Intake is engineered to reduce airflow restriction and increase the volume of cool air entering the engine. For a twin-turbo platform like the VR30DDTT in the Q60, better intake flow can translate directly into more horsepower and quicker spool. Here are the factors that convinced me to pull the trigger:

  • Proven Gains: Injen claims up to 15–20 hp and 15 ft-lb of torque on the Q60, and independent dyno runs from owners back those numbers up.
  • Mandrel-Bent Tubes: The intake piping is smooth and mandrel-bent, minimizing turbulence and maximizing airflow.
  • High-Flow Filter: The dry‑type synthetic filter provides excellent filtration while flowing more air than paper or oiled cotton alternatives.
  • Heat Shield: The enclosed air box pulls air from the front grille area, reducing heat soak compared to open-element intakes.
  • Community Reputation: Injen has a long history in the import tuning world, and owner testimonials consistently praise fitment and durability.

For more technical specifications, you can check the official Injen product page for the Infiniti Q60.

Installation: A Weekend Project That Paid Off

Tools and Preparation

I tackled the install in my garage with a basic tool kit. Here’s what you’ll need:

  • 10 mm, 12 mm, and 14 mm sockets and wrenches
  • Flathead and Phillips screwdrivers
  • Torque wrench (only for critical bolts)
  • Trim removal tools (helpful but not mandatory)

I also recommend having a set of trim removal tools to avoid scratching the plastic covers.

Step-by-Step Process

  1. Disconnect the battery: This prevents any electrical mishaps and resets the ECU, so it can learn the new airflow pattern later.
  2. Remove the factory air box and intake tubes: The stock intake is surprisingly restrictive—several resonators and a harsh 90-degree bend rob airflow.
  3. Install the Injen heat shield and intake tubes: The supplied brackets bolt directly onto existing mounting points. Injen’s engineering is solid—everything lines up without forcing.
  4. Mount the filter: The synthetic filter slides onto the tube and secures with a normal hose clamp. No oiling required, which means less maintenance over time.
  5. Double-check all clamps and connections: Loose clamps can cause air leaks and a rough idle. I torqued everything to spec.
  6. Reconnect the battery and start the engine: Expect a slightly rough idle for the first 30 seconds as the ECU adapts. After that, the car runs smoothly.

Total install time for a first-timer is about 1.5–2 hours. The instructions are clear, and Injen provides a detailed PDF on their website.

Performance Improvements: Butt Dyno Meets Reality

Horsepower and Torque

The most obvious change comes at wide-open throttle. Under hard acceleration, the Q60 pulls noticeably stronger from 3500 rpm to redline. The turbo spool is more audible and seems to build boost a few hundred rpm sooner. On a local dyno, my car recorded a peak gain of 17 hp and 16 ft-lb at the wheels compared to stock—right in line with Injen’s claims. The real benefit is the broadened torque curve; the engine feels livelier in everyday driving.

Throttle Response

One of my biggest frustrations with the stock tune was the lag when stabbing the throttle from a stop. With the Injen intake, that lag is significantly reduced. The engine responds more eagerly to pedal inputs, making stop-and-go traffic less tedious and merging onto highways a breeze.

Engine Sound

If you enjoy the VR30’s growl, you’ll love this upgrade. The intake adds a deeper, racier tone without being obnoxiously loud inside the cabin. Under light throttle it remains civilized; at full boost it roars. The intake “sucking” sound is especially satisfying when you roll into the throttle. It’s a subtle change that makes daily drives more engaging.

Fuel Economy

I’ve observed a modest improvement in fuel economy—about 1–2 mpg on the highway. Since the engine doesn’t have to work as hard to inhale air, it can run more efficiently under light load. City fuel economy stayed roughly the same, likely due to my heavier right foot enjoying the new sound.

Real-World Driving Experience

Daily Commute

On my 30‑mile round trip commute, the intake transformed the car from a comfortable cruiser into a responsive grand tourer. The quicker throttle response makes lane changes safer, and the extra power makes passing slower traffic effortless. The sound alone makes the drive more fun without being intrusive.

Long Road Trips

During a recent 500‑mile road trip, the Q60 felt more confident at highway speeds. Overtaking semis required less pedal input, and the engine held speed easier on grades. I also appreciated that the Injen intake doesn’t drone on the highway—it’s only when you ask for power that the sound livens up.

City Driving and Canyons

In city traffic, the improved low-end response helps the car feel lighter on its feet. On twisty backroads, the intake shines: it sharpens the connection between your right foot and the engine’s output, making it easier to modulate power out of corners. The added grunt from 3000–5000 rpm is exactly what the Q60 needed for spirited driving.

Maintenance and Care

Keeping the Injen Power-Flow Intake in top shape is straightforward:

  • Filter cleaning: Inspect the synthetic filter every 10,000–15,000 miles. Tap out loose debris; if heavily soiled, clean with a mild soap and water solution, then allow to dry completely. Never oil it.
  • Check clamps: Every oil change, verify that all hose clamps are tight. Heat cycles can loosen them slightly.
  • Listen for leaks: If you hear a sustained hiss or the engine idles rough after install, inspect the connections. A smoke test can confirm vacuum leaks.
  • Monitor engine data: Use a OBD2 reader to watch intake air temperature (IAT) and long-term fuel trims. With the heat shield, IATs stay within 5–10 °F of ambient at speed—much better than open intakes.

Comparison to Other Intake Options

Before buying the Injen, I considered several competitors:

  • AMSOIL cold-air intake: Good filtration, but no heat shield and pricier.
  • AFE Momentum GT: Fully enclosed but heavier and more expensive.
  • Stock with high-flow filter: Minimal gain; the stock air box remains restrictive.

Given the balance of cost, performance, and build quality, the Injen Power-Flow was the best choice for my needs. It offers a clear upgrade path—many owners pair it with a tuned ECU (such as EcuTek) to unlock even more power. For a detailed comparison, check out this thread on the Q60Owner forum.

Final Verdict

After several months and thousands of miles, the Injen Power-Flow Intake has exceeded my expectations. It delivers proven horsepower gains, sharper throttle response, a thrilling soundtrack, and easy maintenance. Whether you’re a weekend track enthusiast or simply want a more engaging daily driver, this intake is a smart investment for your Infiniti Q60.

If you’re on the fence, I recommend reading through owner reviews on platforms like Reddit’s Infiniti community to see consistent positive feedback. For the price, you won’t find a simpler, more effective modification that transforms the character of the car.