Infiniti Exhaust Options: Sound and Comfort for Luxury Sedans

Quick answer

For most Infiniti sedan owners who want a noticeable but livable sound upgrade, start with a quality axleback system like the REMARK Axleback for the Infiniti Q60. If you want a deeper tone across the whole RPM range and plan to keep the factory midpipe, a resonated catback is the better long-term choice. Always confirm your model year and drivetrain before ordering.

If you drive an Infiniti sedan, you already know the factory exhaust is tuned for quiet refinement. That is great for highway cruising, but it can leave you wanting more character when you get on the throttle. The good news is that the aftermarket offers several ways to add sound without turning your luxury sedan into a drone-filled commuter.

This guide breaks down the main Infiniti exhaust options, explains what changes with each type, and gives you clear decision rules based on how you actually drive. We will focus on real-world trade-offs like cabin comfort, fitment, and daily usability, so you can choose the right setup the first time.

Axleback vs. Catback: What Actually Changes

An axleback exhaust replaces only the rear muffler section, leaving the factory midpipe and resonators in place. That makes it the least invasive option. You get a louder, more defined tone under acceleration, but the factory resonators usually keep highway drone in check. For a luxury sedan, this is often the sweet spot between sound and comfort.

A catback exhaust replaces everything from the catalytic converter back. That includes the midpipe, which is where most of the sound tuning happens. A well-designed catback can deliver a deeper, more consistent tone across the RPM range, but it also gives you more chances to introduce drone if the resonators are not matched to your driving style. If you want the fullest sound without being obnoxious, look for a resonated catback.

• Axleback: easiest install, lowest risk of drone, moderate sound increase.
• Catback: fuller sound, more potential for drone, higher cost and more installation work.

How to Judge Infiniti Exhaust Sound Before You Buy

Sound clips online can be misleading because microphone placement and playback equipment change what you hear. Instead, focus on the design features that control tone. Muffler style, pipe diameter, and the presence of resonators matter more than any single video. A straight-through muffler will be louder and raspier, while a chambered or oval muffler will be deeper and more controlled.

For a luxury sedan, you also want to consider where the sound sits in the RPM range. A system that is quiet at 2,000 RPM and opens up above 3,500 RPM is usually ideal for daily driving. If the sound is loud at 2,000 to 2,500 RPM, that is exactly where you will spend most of your highway time, and it will get old quickly.

• Look for resonated midpipes if you do a lot of highway driving.
• Ask whether the system uses a straight-through or chambered muffler design.
• Check owner feedback about drone at specific RPMs, not just overall loudness.

Fitment and Installation: What to Confirm First

Infiniti has used several platform variations across Q50, Q60, and other models, and drivetrain layout can affect exhaust routing. Before you order, confirm your exact model year, body style, and whether your car is rear-wheel drive or all-wheel drive. A system that fits one configuration may not fit another.

Also check what hardware is included. Some systems reuse factory gaskets and bolts, while others ship with new hardware. If you are not sure, plan to replace gaskets and bolts during installation. It is a small cost that prevents leaks and rattles later. Finally, confirm whether the system is designed to mate to the factory front pipe or requires an adapter.

• Verify RWD vs. AWD fitment before ordering.
• Check if new gaskets and hardware are included.
• Confirm the system mates to the OEM front pipe or needs an adapter.

Tip Options and Aesthetic Choices

Exhaust tips are the most visible part of the system, and they are often the easiest way to personalize your car. Common options include stainless single wall, stainless double wall, burnt single wall, and burnt double wall. Double wall tips tend to resist heat discoloration better and look more finished, while burnt finishes add a motorsport-inspired look.

Tip choice does not change sound or performance, so pick based on the look you want and how much maintenance you are willing to do. Stainless tips are easy to clean with a metal polish, while burnt finishes can be more sensitive to harsh chemicals. If you park outside or drive in winter, a double wall tip is usually the more durable choice.

• Double wall tips resist heat discoloration better than single wall.
• Burnt finishes look aggressive but need gentle cleaning.
• Tip style is cosmetic; it does not affect sound or flow.

Decision rules for your Infiniti

• If you want a noticeable sound bump with minimal risk of drone: Choose an axleback system that retains the factory midpipe and resonators. This is the safest path for a daily-driven luxury sedan. Start here if you are unsure.
• If you want a deeper, more consistent tone across the RPM range: Choose a resonated catback. The midpipe replacement gives you more control over the final sound, but you must accept more installation work and a higher price. Only go catback if you are ready for the extra commitment.
• If you frequently carry passengers or take long highway trips: Prioritize systems with resonators and avoid straight-through mufflers. Drone is the number one complaint after an exhaust upgrade, and it is hardest to fix after the fact. Comfort first, sound second.
• If you are on a tight budget but want stainless construction: Consider an open-box or display-item catback. You still get the same materials and fitment, often with hardware included, at a lower cost. Check the condition notes carefully.

Product facts to know

• Axleback - Infiniti Q60 [2017-2022]: Fits all Q60 (2017-2022 - RWD & AWD). Easy and simple solution to bring out the potentials of your Infiniti Q60. Available tip options include Stainless Single Wall, Stainless Double Wall, Burnt Single Wall, and Burnt Double Wall. This is a direct-fit axleback that works on both drivetrains, so you do not have to worry about RWD vs. AWD compatibility. The multiple tip options let you match the look to your car without changing the sound.
• Sports Touring Catback Exhaust - Honda Civic EX / Touring FE1 [2022+]: Full 304 stainless steel catback system featuring dual oval mufflers and 4 inch slant cut tips. The 3 inch resonated midpipe bolts directly to the OEM front overpipe. Note: the midpipe does neck down to properly mate to the OEM front overpipe flange. While this is a Honda application, it illustrates a common catback design approach: a resonated midpipe that mates to the factory front pipe. The neck-down ensures a leak-free connection without requiring an adapter. This is the kind of detail to look for in any catback, including Infiniti options.
• Sports Touring Catback Exhaust (Burnt Tip)- Honda Civic Sport Sedan [2022+]: Application 2022+ Honda Civic Sedan. Catback (Part Number: RK-C1063H-11T). Condition Rating 4.9/5 - Like New Open Box. Gaskets and hardware included. Free ground shipping included to lower 48 States. May have light surface imperfections due to handling. This shows the value of buying an open-box catback: you get the same fit and function at a lower price, with gaskets and hardware included. If you are comfortable with minor cosmetic imperfections, it can be a smart way to save on a stainless system.

Who should buy which Infiniti exhaust

Best for

• Daily drivers who want a subtle sound upgrade without cabin drone
• Owners who want an easy bolt-on install with basic hand tools
• Drivers who want to keep the factory midpipe and emissions equipment intact

Not for

• Owners seeking the loudest possible exhaust note
• Those who plan to replace the full exhaust system including headers
• Drivers who are not willing to verify fitment for their specific model year and drivetrain

Upgrading your Infiniti exhaust is about matching sound to your daily reality. An axleback is the low-risk entry point, while a resonated catback gives you more tone control if you are ready for the extra work. Whichever you choose, confirm fitment first and prioritize comfort if you spend a lot of time on the highway. That way, you get the sound you want without sacrificing the luxury you paid for.