ISR Performance Exhaust Y-Pipe - Nissan 370z / G37 / G35X / Q60 3.7L
ISR Performance Exhaust Y-Pipe - Nissan 370z / G37 / G35X / Q60 3.7L
The ISR Performance Y-Pipe for the 370Z, G37, G35X, and Q60 3.7L is a 304 stainless replacement for the factory Y-pipe section. 2.75" input piping with bellowed flex sections, a high-velocity merge... See more
The ISR Performance Y-Pipe for the 370Z, G37, G35X, and Q60 3.7L is a 304 stainless replacement for the factory Y-pipe section. 2.75" input piping with bellowed flex sections, a high-velocity merge collector, and 3" stainless output. Dimpled gusset plates add strength at the merge, and ground clearance is improved over the factory unit. Pairs with any ISR Z34 catback exhaust for a complete RWD or AWD catback path.
What It Does
Y-pipe section of the exhaust between the cats and the catback. The factory Y-pipe is a flow restriction and hangs lower than it needs to. This one steps up to 2.75" piping with bellowed flex sections that absorb engine movement, then merges into a 3" outlet at a velocity-style collector. The dimpled gusset plates reinforce the merge point against fatigue under sustained driving load. AWD (G35X, G37X) and RWD models share the same Y-pipe. the spacers in the kit cover both configurations.
Fitment
- Infiniti G37 (2009-2013) RWD and G37X (2009-2013) AWD
- Nissan 370Z (2009-2021)
- Infiniti Q60 3.7L (2014-2015) RWD
- Infiniti G35X 3.5L (2006-2008) AWD
Not compatible with Nismo models. the OEM Nismo cat-back exhaust uses different routing, and aftermarket Nismo catbacks aren't compatible either. Use IS-Z33-Y for 350Z and G35 RWD 3.5L (different platform). Pairs with ISR's 370Z/G37 single GT exhausts (IS-GT-370Z, IS-GT-370Z-BT, IS-GT-G37C, IS-GT-Q60) for a complete catback.
What's in the Box
- 1x ISR Y-pipe with bellowed flex sections and velocity merge
- Gaskets, bolts, and nuts for installation
Product Details
Brand: ISR Performance
Part Number: IS-Z34-Y
Type: Y-pipe (cat-section to catback)
Vehicle Fitment: G37/G37X 09-13, 370Z 09-21, Q60 3.7L 14-15 RWD, G35X 3.5L 06-08 AWD
Excluded: Nismo models (OEM and aftermarket Nismo catbacks)
Material: 304 stainless steel
Input Piping: 2.75" with bellowed flex sections
Output Piping: 3" (post velocity merge)
Reinforcement: Dimpled gusset plates at merge
Driveline: RWD and AWD (G35X/G37X) compatible
Companion Exhausts: IS-GT-370Z, IS-GT-370Z-BT, IS-GT-G37C, IS-GT-Q60
Combo Package: IS-Y-GT-Z34 (Y-pipe + GT exhaust, 5% savings)
Sold: Complete Y-pipe with hardware
Legality: Off-road and competition use only