Y Pipe Exhaust for Infiniti Q40 Q50 Q60 (2014-2015) 3.7L

High-Flow T304 Stainless Y-Pipe for 2014-2015 Infiniti Q40, Q50, Q60 (V36 / V37 / CV36)

What it Does: The Y-Pipe Exhaust replaces the restrictive, leak-prone factory mid-pipe assembly on the 2014-2015 Infiniti Q40, Q50, and Q60 to eliminate exhaust backpressure and optimize high-RPM exhaust gas velocity.

The Stock Infiniti Q40, Q50, Q60 Flex Section & Restriction Failure

Factory exhaust systems on the V36, V37, and CV36 platforms are compromised by necked-down crush bends and restrictive merge angles that choke the VQ37VHR engine. Furthermore, OEM mild steel flex joints frequently tear, fray, and corrode over time due to engine pitch under load. This leads to exhaust leaks, loss of scavenging efficiency, increased in-cabin drone, and sluggish throttle response downstream of the catalytic converters.

The Engineering Solution

Constructed from mandrel-bent T304 stainless steel, this direct-fit performance Y-pipe features dual 2.5-inch inlet runners transitioning smoothly into a single 3.0-inch collector to maximize exhaust gas expansion. Heavy-duty double-braided internal flex bellows absorb drivetrain movement without cracking or unraveling. Thick CNC-machined flanges ensure leak-free seal integrity against high thermal cycling, restoring proper exhaust pulse synchronization across the cylinder banks.

Technical Specifications

Compatibility

• 2014-2015 Infiniti Q50 3.7L Naturally Aspirated V6
• 2015 Infiniti Q40 3.7L Naturally Aspirated V6
• 2014-2015 Infiniti Q60 3.7L Naturally Aspirated V6
• Note: Does not fit Q50 Hybrid (3.5L) or 2.0L / 3.0L Turbo models

Frequently Asked Questions

Does this fit the V36, V37, and CV36 Q40, Q50, Q60?

Yes, this is a direct fit for the 2014-2015 Infiniti Q40, Q50, and Q60 equipped with the VQ37VHR engine.

Will installing this Y-pipe trigger a Check Engine Light (CEL)?

No, this component installs entirely downstream of the factory catalytic converters and primary oxygen sensors, preserving OEM sensor calibration without causing fault codes.

The Infiniti Performance Standard

Tailored for the naturally aspirated VQ platform, this upgrade refines the distinct 3.7L exhaust note by eliminating harsh rasp while opening up critical mid-to-high-RPM airflow for responsive, uninterrupted power delivery.