Description
The STILLEN Stainless Steel Cat-Back Exhaust System for the 2008–2013 Nissan Altima Coupe 3.5L is engineered to unlock additional performance, enhance exhaust tone, and deliver a premium appearance with OEM-level fitment.
This complete cat-back exhaust system replaces the factory exhaust from the catalytic converters back, significantly improving exhaust flow. The increased airflow results in a measurable increase in horsepower and torque, with gains felt across the entire power band and a noticeable improvement toward the top end of the RPM range. Improved efficiency during steady highway cruising can also be expected.
Sound tuning is designed for real-world driving. The system produces a mild, refined exhaust note at idle and during cruising, while transitioning to a more aggressive tone under throttle, giving the Altima Coupe a sporty character without excessive cabin noise or drone. This makes it an ideal upgrade for drivers who want enhanced sound while maintaining a comfortable interior experience.
Constructed from high-quality stainless steel, this exhaust system offers long-term durability and corrosion resistance. The system is finished with polished stainless steel mufflers, end pipes, and exhaust tips, delivering a clean, aggressive rear appearance that fills the factory exhaust cutouts perfectly and complements the Altima Coupe’s design.
Designed as a direct bolt-on cat-back system, installation requires no cutting or welding and utilizes factory mounting locations. Backed by a limited lifetime warranty, the STILLEN Altima Coupe exhaust delivers reliable performance, refined sound, and proven quality.
Vehicle Fitment
Nissan
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2008-2013 Nissan Altima Coupe 3.5L
Fitment Notes
- Fits 3.5L V6 Coupe models ONLY
- Does NOT fit Sedan models
- Does NOT fit 2.5L 4-Cylinder models
- Complete cat-back exhaust system
- Direct bolt-on installation using factory mounting points
Features & Benefits
- Increase in horsepower and torque
- Improved exhaust flow over factory system
- Mild exhaust note at idle and cruising
- Aggressive sound under throttle
- Designed for a refined, quiet cabin with enhanced exterior tone
- Complete cat-back exhaust system
- Stainless steel construction throughout
- Polished stainless steel tips, end pipes, and mufflers
- Aggressive appearance that complements factory exhaust cutouts
- Limited lifetime warranty
Construction & Design
Cat-Back Configuration
Replaces the restrictive factory exhaust system from the catalytic converters back to improve flow, sound, and performance.
Material Quality
Manufactured from stainless steel to provide long-lasting durability, corrosion resistance, and consistent performance.
Sound Engineering
Balanced exhaust tuning delivers daily-driving comfort with a strong, sporty tone under acceleration.
Finish & Appearance
Polished stainless steel components provide a premium, aggressive look that enhances the rear of the Altima Coupe.
Why STILLEN
With decades of Nissan-specific engineering experience, STILLEN exhaust systems are dyno tested, vehicle validated, and designed to deliver real performance gains with factory-quality fitment and sound refinement.
