Description
The STILLEN Stainless Steel Cat-Back Exhaust System for the 2008–2013 Nissan Altima Coupe 2.5L is engineered to deliver increased performance, improved exhaust tone, and premium build quality with factory-perfect fitment.
This complete cat-back system replaces the restrictive factory exhaust from the catalytic converter back, significantly improving exhaust flow. The result is a measurable increase in horsepower and torque, verified through dyno testing, along with improved throttle response and overall engine efficiency.
Sound characteristics are carefully tuned to provide a mild, refined exhaust note at idle and during cruising, while producing a more aggressive tone under throttle—delivering a sporty driving experience without excessive cabin drone.
Constructed entirely from high-quality stainless steel, including the piping, mufflers, and end sections, this exhaust system is built for durability, corrosion resistance, and long-term performance. The system is finished with polished stainless steel tips, end pipes, and mufflers, giving the Altima Coupe a clean, aggressive rear appearance that fills the factory exhaust cutouts perfectly.
Designed as a direct bolt-on cat-back system, installation is straightforward and requires no cutting or welding. Backed by a limited lifetime warranty, this exhaust system offers performance, sound, and reliability worthy of the STILLEN name.
Vehicle Fitment
Nissan
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2008-2013 Nissan Altima Coupe 2.5L
Fitment Notes
- Fits 2.5L 4-Cylinder Coupe models ONLY
- Does NOT fit Sedan models
- Does NOT fit 3.5L V6 models
- Complete cat-back exhaust system
- Direct bolt-on installation using factory mounting locations
Features & Benefits
- Complete cat-back exhaust system
- Increase in horsepower and torque
- Improved exhaust flow over factory system
- Mild exhaust note at idle and cruising
- Aggressive tone under throttle
- Stainless steel construction throughout
- Polished stainless steel tips, end pipes, and mufflers
- Factory-style fitment and alignment
- Long-lasting corrosion resistance
- Limited lifetime warranty
Construction & Design
Cat-Back Configuration
Replaces the factory exhaust system from the catalytic converter back for maximum performance and sound improvement.
Material Quality
Manufactured entirely from stainless steel to ensure durability, longevity, and resistance to rust and corrosion.
Sound Engineering
Tuned for a balanced exhaust note—comfortable for daily driving with an aggressive character when accelerating.
Finish & Appearance
Polished stainless components provide a high-end look that complements the Altima Coupe’s factory rear valance.
Why STILLEN
STILLEN exhaust systems are engineered specifically for Nissan platforms and tested to deliver real-world gains with OEM-level fitment, sound quality, and reliability—backed by decades of performance expertise.
