STILLEN 2019-2023 Nissan Maxima Cat Back Exhaust System - [3.5L] - 504392

The STILLEN Cat-Back Exhaust System for the 2019–2023 Nissan Maxima [A36] 3.5L is engineered to deliver improved performance, refined sound, and long-term durability while perfectly complementing the factory exhaust layout.

Constructed entirely from mandrel-bent 304 stainless steel, this cat-back exhaust improves exhaust flow to increase horsepower and torque at the wheels while maintaining a civilized driving experience. The exhaust remains mild and refined at idle and during cruising, but opens up with a deep, aggressive tone under throttle.

Developed using STILLEN’s decades of experience with Nissan’s VQ35 3.5-liter V6, this system enhances performance without introducing drone or harshness. Polished mufflers and precision fitment ensure a clean OEM-plus appearance that aligns perfectly with the factory exhaust cut-outs.

The system is designed for easy bolt-on installation, making it suitable for installation in a home garage or driveway with basic hand tools.

Vehicle Fitment

Nissan

• 2019–2023 Nissan Maxima [A36]
• Engine: 3.5L V6 (VQ35)

Fitment Notes

• Designed specifically for 8th-Generation Maxima (A36)
• Utilizes factory exhaust mounting points and cut-outs
• Cat-Back Exhaust System – replaces factory exhaust from catalytic converter back
• Not compatible with other Nissan models

Features & Benefits

• Increases Horsepower at the Wheels
• Increases Torque at the Wheels
• Mild exhaust tone at idle and cruising
• Aggressive sound under acceleration
• Compliments factory exhaust cut-outs
• Complete Cat-Back Exhaust System
• 304 Stainless Steel Construction
• Polished mufflers for clean OEM-plus appearance
• Bolt-on installation
• Installable in driveway or garage
• Limited Lifetime Warranty
• Made in America

Construction & Design

This STILLEN cat-back exhaust system is manufactured from high-quality 304 stainless steel for corrosion resistance and long service life. Mandrel-bent tubing ensures consistent diameter and unrestricted exhaust flow, improving efficiency and performance.

The mufflers are tuned to balance sound quality and drivability, eliminating harsh resonance while delivering a sporty exhaust note when pushed.

Recommended Upgrades

For maximum sound and performance, STILLEN recommends pairing this exhaust with:

• STILLEN Cold Air Intake
• STILLEN Front Splitter
• STILLEN Rear Diffuser

Why STILLEN

Since 1986, STILLEN has been dedicated exclusively to Nissan and Infiniti performance. With extensive motorsports pedigree and close ties to Nissan and NISMO, STILLEN products are engineered, tested, and manufactured to deliver real-world performance and reliability.