Infiniti Q60 Performance Exhaust Systems: Adding 15-20 Hp with Magnaflow or Akrapovic

Unlock Your Infiniti Q60's Potential With a Performance Exhaust Upgrade

The Infiniti Q60 already stands out as a luxury sports coupe with sleek lines, a refined interior, and potent twin-turbo V6 options. But for driving enthusiasts, the stock exhaust system often feels restrictive—muffling the engine’s natural character and limiting airflow. A performance exhaust system from trusted brands like MagnaFlow or Akrapovic can unlock an additional 15–20 horsepower while transforming the driving experience with a richer, more aggressive exhaust note. This upgrade isn’t just about power; it’s about improving throttle response, reducing weight, and giving your Q60 a personalized soundtrack. Let’s explore how these systems work, what they offer, and how to choose the right one for your build.

How Performance Exhaust Systems Deliver More Horsepower

Every engine is essentially an air pump. The easier it can inhale and exhale, the more efficiently it produces power. Factory exhaust systems are engineered to meet noise regulations and cost targets, often incorporating restrictive mufflers, narrow pipe diameters, and complex bends that create backpressure. A performance exhaust system redesigns the flow path using larger-diameter tubing, mandrel bends, and high-flow mufflers to minimize restriction.

The key principle is scavenging: when exhaust pulses exit the cylinders, they create a low-pressure wave that helps pull the next charge out. By reducing backpressure and optimizing pipe length and diameter, performance exhausts enhance this effect. The result is a measurable increase in airflow, which the engine’s ECU can convert into torque and horsepower—typically 15–20 HP at the wheels on a stock Q60. The gains are most noticeable in the mid-to-upper RPM range, where the stock system tends to choke the VR30DDTT engine.

Comprehensive Benefits of an Aftermarket Exhaust on the Q60

Horsepower and Torque Gains: Real-world dyno tests confirm 15–20 HP and comparable torque increases, especially with a full cat-back or turbo-back system.
Improved Sound Quality: Replace the muted factory note with a deep, aggressive tone that intensifies under acceleration without excessive drone at cruising speeds.
Weight Reduction: Many aftermarket systems use lighter materials like T304 stainless steel or titanium, shedding 15–30 pounds from the vehicle’s rear end.
Better Throttle Response: Reduced backpressure allows the turbos to spool slightly quicker, making the engine feel more responsive to pedal inputs.
Enhanced Aesthetics: Options like polished stainless, carbon fiber, or titanium tips add visual appeal to the rear bumper.
Potential Fuel Economy Improvement: Under light throttle, improved exhaust flow can contribute to modest MPG gains, though spirited driving will offset this.

MagnaFlow Exhaust Systems: A Trusted Name for the Infiniti Q60

MagnaFlow has built a reputation for quality T304 stainless steel construction, lifetime warranties, and a deep, muscle-car-inspired tone. For the Q60, they offer a range of cat-back and axle-back systems designed for a direct bolt-on fitment.

MagnaFlow Q60 Product Highlights

Construction: 100% stainless steel (T304) with mandrel-bent tubing for smooth flow. All welds are hand-polished.
Muffler Design: Straight-through perforated core mufflers that reduce restriction while controlling sound. No baffles or fiberglass packing that could degrade over time.
Sound Profile: Aggressive yet refined—think a deep rumble at idle, a purposeful growl under throttle, and minimal drone. It’s louder than stock but remains daily-drivable.
Installation: Direct bolt-on using factory hangers. No cutting or welding required on cat-back systems.
Warranty: Lifetime limited warranty on materials and workmanship.

MagnaFlow systems typically deliver 15–18 HP gains at the wheels on a stock Q60, with dyno sheets available on their website. The brand is an excellent choice for owners seeking a noticeable sound improvement without overwhelming volume.

For more detailed product information, visit the MagnaFlow official site.

Akrapovic Exhaust Systems: Premium Engineering for Maximum Performance

Akrapovic is widely regarded as a leader in high-performance exhaust technology, frequently used on factory race teams and luxury supercars. Their Q60 systems use lightweight titanium and carbon fiber components to achieve significant weight savings and a unique, race-inspired sound.

Akrapovic Q60 Product Highlights

Construction: High-grade titanium with optional carbon fiber tailpipes and heat shields. Titanium is about 40% lighter than stainless steel.
Muffler Design: Akrapovic’s patented sound-optimization chambers and valve technology (on some versions) allow for a dual personality—civilized during cruising and raw when the throttle opens.
Sound Profile: A refined, metallic snarl that is aggressive but never annoying. The sound is deeper than stock but with a raspy, high-performance edge at high RPM.
Performance Gains: Typically 18–22 HP and 15–20 lb-ft of torque, thanks to the ultra-low backpressure design and weight reduction.
Installation: Precision CNC-machined flanges and laser-cut parts ensure a perfect fit. Instructions are detailed, but professional installation is recommended to care for the titanium components.
Weight Savings: Up to 40% lighter than stock, which improves handling response at the rear axle.

Akrapovic systems command a premium price but deliver the highest build quality, exotic materials, and proven power increases. They are ideal for owners who want the best possible performance and are willing to invest in it.

Explore the full lineup at Akrapovic’s official page.

Comparing MagnaFlow vs. Akrapovic for Your Q60

Factor	MagnaFlow	Akrapovic
Material	T304 stainless steel	Titanium (with carbon fiber options)
Weight Savings	15–25 lbs	25–40 lbs
Horsepower Gain	15–18 HP	18–22 HP
Sound Character	Deep, muscle-car rumble	Exotic, high-frequency snarl
Price Range	$1,200–$1,800	$2,500–$4,000+
Warranty	Lifetime	Limited (typically 2–5 years)

Both brands produce outstanding systems. MagnaFlow offers the best value for a daily driver who wants a robust sound and reliable gains. Akrapovic is for the enthusiast who prioritizes weight reduction, exotic materials, and a truly unique exhaust note.

Installation Process for Q60 Performance Exhausts

While professional installation is always an option, many Q60 owners tackle the job themselves with basic tools. The process is straightforward, but careful attention to detail ensures a leak-free fit and optimal sound.

Step-by-Step Overview

Prepare the Vehicle: Park on a level surface, use jack stands or ramps, and disconnect the battery negative terminal (to avoid accidental air-suspension or sensor issues).
Remove the Stock Exhaust: Spray penetrating oil on the flange bolts (overnight is best). Unbolt the mid-pipe and rear section connections, then remove rubber hangers with a pry bar or hanger removal tool. The stock system can be heavy, so have a helper support it.
Transfer Components: If your aftermarket system uses the OEM oxygen sensors or exhaust valves, transfer them carefully. Some kits include adapters.
Install the New System: Assemble the aftermarket system loosely (all bolts hand-tight). Hang it on the rubber mounts, making sure pipes are aligned and not contacting the underbody. Tighten all clamps and flanges to manufacturer torque specs.
Check Clearance and Leaks: Start the engine and listen for exhaust leaks at every joint. Use a cold-start cylinder to build pressure, then check with a soapy water spray if needed. Ensure the tips are evenly spaced in the bumper cutouts.
Final Inspection: Tighten every bolt again after a short test drive, as heat cycling can loosen connections.

Professional installation typically costs $200–$400 and may be worthwhile for titanium systems where scratches or improper handling can damage the components.

Tools You Will Need

Socket and ratchet set (10mm, 12mm, 14mm, 17mm)
Breaker bar and torque wrench
Penetrating oil (like PB Blaster)
Rubber mallet
Exhaust hanger removal tool or large flathead screwdriver
Jack and jack stands or ramps
Safety glasses and gloves

Legal and Practical Considerations

Before upgrading, check local noise ordinances and emissions laws. Most cat-back systems are legal in all 50 states because they leave the catalytic converters in place. However, removing resonators or choosing a system with no muffler may exceed noise limits in some areas. Akrapovic offers a “valved” option that allows on-demand quiet mode, which can help with compliance.

Additionally, some states have visual inspection requirements. Ensure your chosen system retains factory O2 sensor locations and does not throw check-engine lights. Both MagnaFlow and Akrapovic design their Q60 systems to be emissions-compliant.

Complementary Performance Upgrades for Maximum Gains

The 15–20 HP from an exhaust is a great start, but combining it with an intake and a tune can push the Q60 well past the 400-wheel-horsepower mark. Consider:

Cold Air Intake: Reduces intake restriction, pairing perfectly with the freer-flowing exhaust.
Downpipes: Replacing restrictive factory downpipes with high-flow or catless versions can add another 20–30 HP (be aware of emissions laws).
ECU Tune: A custom or OTS tune adjusts air/fuel ratios and boost targets to take full advantage of improved flow. Together with exhaust and intake, gains of 80–100 HP are achievable.
Heat Management: Upgraded intercoolers and heat exchangers help maintain power during aggressive driving.

For more details on building a complete performance package, visit a dedicated Infiniti tuning resource like Z1 Motorsports.

Customer Feedback and Real-World Results

Online forums and social media groups for the Q60 (e.g., Infiniti Q60 Forum, Facebook groups) are filled with positive reviews from owners who installed MagnaFlow or Akrapovic systems. Common themes include the immediate improvement in sound, the satisfaction of a successful DIY install, and notable performance gains felt at part-throttle and during highway merging. Some users report a slight drone between 1,800–2,200 RPM on certain MagnaFlow setups, but adding a Helmholtz resonator (available as an add-on) can mitigate that. Akrapovic owners praise the exotic tone and the weight reduction they feel in corner exit traction.

Dyno charts shared by enthusiasts confirm the 15–20 HP claims, with some systems showing gains up to 22 HP on a stock car. The consistency across different clips suggests the engineering is solid.

Cost vs. Value: Is an Exhaust Upgrade Worth It?

On a dollar-per-horsepower basis, an exhaust system is one of the most cost-effective modifications for the Q60. For around $1,500, you gain 15–20 HP, a better sound, and a weight reduction. Compare that to a tune or downpipes which may cost similar amounts but require more invasive work or risk warranty issues. The exhaust also provides daily enjoyment every time you start the car or press the throttle.

Akrapovic’s premium price can be justified by the exotic materials, brand prestige, and higher potential resale value if you later decide to sell the vehicle with the system included.

Final Thoughts on Upgrading Your Infiniti Q60 Exhaust

Whether you lean toward the robust, reliable power of a MagnaFlow cat-back or the exotic, lightweight engineering of an Akrapovic titanium system, upgrading your Q60’s exhaust is a rewarding investment. The added horsepower, improved throttle response, and transformed sound will make every drive more engaging. Choose based on your budget, desired sound character, and weight savings priorities. Either way, you’ll unlock performance the factory left on the table.