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The STILLEN Y-Pipe Exhaust is designed to enhance performance and exhaust flow for Nissan Z and Infiniti G/Q models. With mandrel-bent stainless steel construction, this Y-pipe ensures optimized airflow and reduced back pressure, increasing both horsepower and torque while maintaining a refined, aggressive exhaust note.
Key Features
- Mandrel-Bent Stainless Steel Y-Pipe – Ensures smooth, unrestricted exhaust flow
- 2.5" Piping Expanding to 3" at the Collector – Maximizes performance gains
- Compatible with STILLEN Single Path, Stock, and Nismo-Style Exhausts
- Does Not Fit Nismo or IPL Models
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Vehicle Fitment:
- 2003-2008 Nissan 350Z [Z33]
- 2009-2020 Nissan 370Z [Z34]
- 2023-2024 Nissan Z [RZ34] – Manual Transmission Only
- 2003-2007 Infiniti G35 Coupe [V35]
- 2008-2013 Infiniti G37 Coupe [V36]
- 2014-2015 Infiniti Q60 [V36]
Performance Benefits
- +7 WHP Increase (Wheel Horsepower)*
- +3 lb-ft Torque Gain*
- Mild Note at Idle & Cruising – Aggressive Under Throttle
- Refined Yet Sporty Exhaust Tone – Balances a luxurious cabin feel with enhanced performance sound
- Complements Factory Exhaust Cutout – Clean, OEM+ appearance
- Aggressive Look to Match the Enhanced Exhaust Note
Results May Vary Depending on Vehicle and Additional Modifications
Optimized for Maximum Gains
Constructed from stainless steel, the STILLEN Y-Pipe transitions from 2.5 inches to 3 inches at the collector, ensuring minimal restriction and efficient exhaust scavenging. Designed specifically for the VQ35 and VQ37 engines, this upgrade provides +7 WHP and +3 lb-ft of torque on its own, with a total of +10 HP when paired with the STILLEN Silver Series Y-Pipe Back Exhaust System (#504251).
- Factory-Compatible Output Flange – Retains OEM configuration and location
- Works with Name-Brand Y-Pipe Back Exhaust Systems
Upgrade Your Exhaust with STILLEN
For Nissan Z and Infiniti G/Q owners seeking a balance of performance, sound, and refinement, the STILLEN Y-Pipe Exhaust delivers proven power gains, enhanced sound, and OEM-level fit and finish. Pair it with the STILLEN Silver Series Y-Pipe Back Exhaust System (#504251) for maximum performance benefits.