The STILLEN Axle-Back Exhaust System for the 2016-2018 Nissan Altima L33 is designed to enhance performance, sound, and aesthetics while maintaining a comfortable in-cabin experience. Constructed from 304 stainless steel, this system delivers increased horsepower and torque with a refined yet aggressive exhaust note under throttle.
Key Features
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Rear Section Exhaust Design
- Targets performance and sound while keeping cabin noise controlled.
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304 Stainless Steel Construction
- Durable, corrosion-resistant, and built to last.
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Polished Stainless Tips, End Pipes, and Mufflers
- Enhances the vehicle’s appearance with a clean, aggressive look.
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Performance Gains
- Increases horsepower and torque for improved throttle response.
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Bolt-On Installation
- Simple, hassle-free installation with no welding required.
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Refined Exhaust Note
- Mild tone at idle & cruising for a comfortable ride.
- Aggressive tone under throttle for an exhilarating driving experience.

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