Fitment Information

• Infiniti Q50 V37 VR30DDTT 3.0T (2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023) 3.0T VR30DDTT only, does not fit 3.7L or 2.0T Q50
• Infiniti Q60 V37 VR30DDTT 3.0T (2017, 2018, 2019, 2020, 2021, 2022, 2023) does not fit Nismo catback
• Nissan Z RZ34 VR30DDTT 3.0T (2023, 2024, 2025)

Fitment Note: VR30DDTT 3.0T twin-turbo engine only. Does not fit the 2014-2015 Q50 with the 3.7L VQ37VHR or 2.0T engine. Does not work with NISMO model catback exhausts, whether OEM or aftermarket. 

Emissions Compliance

This is a Y-Pipe and does not alter, replace, or modify any emissions equipment.This item does not ship to California.

Specs & Features

• This will not work with a Nismo Model Catback Exhaust OEM or Aftermarket.
• The 2.75 inch primary runners from each catalytic converter merge into a single 3 inch outlet at the velocity merge, stepping up pipe diameter to improve exhaust flow over the restrictive factory Y-pipe.
• Bellowed flex sections on each primary runner absorb engine movement and heat cycling vibration, protecting the welds and catalytic converter flanges from fatigue.
• The dimpled gusset plate ties the two primary runners together before the merge for structural rigidity.
• Bolts directly to the existing 2-bolt catalytic converter flanges.
• Does not alter, replace, or modify any emissions equipment.
• ISR designates this product for off-road and competition use only. 

What's included?

• 1x Exhaust Y-Pipe
• 2x 2.75" 2 bolt exhaust gaskets
• 1x 3" 2 bolt exhaust gaskets
• 6x nuts
• 6x bolts

Pairs well with:

• Rev9 Muffler Delete Catback Exhaust Infiniti Q50 3.0T (2016-2023) with Y-Pipe CB-309A The Rev9 catback bolts directly to the 3 inch outlet of this ISR Y-pipe. Pairing an aftermarket Y-pipe with a high-flow catback maximizes exhaust flow from the catalytic converters to the tips on the VR30DDTT platform.
• ISR ST Series Y-Back Exhaust Infiniti Q60 RWD (2017-2023) Dual Muffler The matching ISR catback for Q60 buyers, designed to bolt to an aftermarket Y-pipe including this IS-Q5060-Y for a complete matched ISR exhaust system on the Q60 3.0T.

The ISR Performance Q50 / Q60 / RZ34 3.0T Y-pipe utilizes 2.75" stainless steel piping along with bellowed flex sections running from the 2 bolt catalytic converter flanges back to the high performance velocity merge. The Y pipe then steps to 3" stainless piping coming out of the velocity merge to the rear 3" exhaust flange. The Y pipe also features an integrated dimpled gusset plate tying the two individual runners together for increased strength and rigidity.

The ISR Performance Y pipe was designed to provide the best possible exhaust tone, ground clearance, and performance, all at an affordable price!