STILLEN 2009-2013 Infiniti G37 Sedan, 2015 Q40 Stainless Steel Cat-Back Exhaust System - 504377

Enhance your Infiniti G37 Sedan (V36) or Q40 with the STILLEN Cat-Back Exhaust System, engineered for up to 19 WHP increase and impressive torque gains while delivering a refined, authoritative exhaust note. Designed to balance performance and everyday usability, this exhaust is mild at idle yet aggressive under throttle, making it ideal for enthusiasts who value both sound and comfort.

Vehicle Fitment:

• 2009-2013 Infiniti G37 Sedan (RWD & AWD)
• 2015 Infiniti Q40 (RWD & AWD)

Key Features & Benefits:

• Performance Gains: Up to 19 WHP and notable torque increase*
• Exhaust Tone: Mild at idle, authoritative and aggressive under throttle
• 304 Stainless Steel Construction: Long-lasting durability with mandrel-bent tubing
• Polished Dual Wall Tips: Dual split rear exit for aggressive styling
• True Cat-Back Design: Improves exhaust flow and efficiency
• Luxury Friendly: Enhances performance without excessive cabin noise
• Installation: Direct bolt-on with high-quality fit and finish
• Lifetime Warranty

Performance Notes:

The STILLEN Cat-Back Exhaust for the G37 & Q40 dramatically improves airflow, increasing both horsepower and torque across the rev range. Free-flowing performance mufflers and dual polished tips ensure an aggressive look and authoritative tone under throttle, while maintaining a quiet and comfortable cabin at cruising speeds.

Installation Notes:

• True Cat-Back design – no cutting or welding required
• Compatible with all Sedan trim levels and Q40 configurations
• Mandrel-bent tubing ensures maximum flow and durability

Overview:

Whether cruising the highway, carving canyon roads, or hitting the track, the STILLEN Cat-Back Exhaust [504377] gives your Infiniti G37 Sedan or Q40 the perfect combination of power, sound, and style. Its polished 304 stainless steel construction, dual split rear exit, and carefully tuned mufflers make it a standout both in performance and aesthetics.