Resonated Catless Test Pipes for Nissan 350Z/370Z & Infiniti G35/G37
Maximize VQ engine performance with these resonated catless test pipes. Designed for 2007-2015 Nissan 350Z/370Z and Infiniti G35/G37 (RWD only). Features built-in resonators to reduce drone while eliminating restrictive catalytic converters for serious power gains.
Performance Specs
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Diameter: 2.5" (63.5mm) mandrel-bent tubing
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Design: Resonated catless test pipes
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Material: T-304 stainless steel
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Power Gains: 20+ HP, 15-20 ft-lbs torque
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Fitment: Direct bolt-on for VQ35/VQ37 RWD models
What's Included
- Pair of 2.5" resonated test pipes (left and right)
- New gaskets
- Installation hardware
Fitment Guide
| Year |
Make |
Model |
Engine |
Notes |
| 2007-2008 |
Nissan |
350Z |
VQ35HR |
RWD only |
| 2009-2020 |
Nissan |
370Z |
VQ37VHR |
RWD only |
| 2007-2008 |
Infiniti |
G35 Sedan/Coupe |
VQ35HR |
RWD only |
| 2008-2015 |
Infiniti |
G37 Sedan/Coupe |
VQ37VHR |
RWD only |
| 2014-2015 |
Infiniti |
Q60 |
VQ37VHR |
RWD only |
Important: RWD models ONLY. Does NOT fit AWD (G35x, G37x) models.
Installation Notes
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Difficulty: Intermediate | Estimated Time: 2-3 hours
- Direct bolt-on replacement for factory catalytic converters
- May require O2 sensor spacer or CEL fix (sold separately)
- Professional installation recommended
- ECU tuning recommended for optimal power gains
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Off-road use only - removes catalytic converters
- Will not pass emissions testing
- NOT compatible with AWD models
Performance Benefits
- 20+ HP gain at the wheels
- 15-20 ft-lbs torque increase
- Improved throttle response
- Lower exhaust gas temperatures (EGT)
- Aggressive VQ exhaust note
- Resonators reduce drone vs. straight test pipes
- Better exhaust flow and scavenging
- Works with stock or aftermarket exhaust
Resonated vs. Non-Resonated
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Resonated (This Product): Includes built-in resonators to reduce cabin drone while maintaining aggressive sound. Best for daily drivers.
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Non-Resonated: Straight-through design for maximum flow and loudest sound. Can cause significant drone on highway.
Supporting Mods Recommended
- O2 sensor spacer or CEL eliminator
- ECU tuning (UpRev, EcuTek) for best results
- Cat-back exhaust system
- Cold air intakes (dual intake recommended)
- High-flow Y-pipe
FAQ
Q: Will this fit my AWD G37x?
A: No, this is designed for RWD models only. AWD models have a different exhaust configuration and are not compatible.
Q: Will I get a check engine light?
A: Likely yes, since this removes the catalytic converters. You'll need O2 sensor spacers/CEL fix or ECU tuning to eliminate the codes.
Q: Is this street legal?
A: No, this is for off-road/race use only. Removing catalytic converters is illegal for street use in most areas and will not pass emissions.
Q: How loud is this compared to non-resonated test pipes?
A: Noticeably quieter with less drone. You'll still get the aggressive VQ sound, but the resonators reduce highway drone significantly compared to straight pipes.
Q: Do I need a tune?
A: Recommended but not required. With tuning you'll maximize the 20+ HP gains. Without tuning, you'll still see 10-15 HP improvement.
Q: Will this work with my stock exhaust?
A: Yes! These test pipes work with stock or aftermarket cat-back exhaust systems. They replace the factory catalytic converters only.
Q: What's the difference between VQ35HR and VQ37VHR fitment?
A: Both engines use the same exhaust configuration. This kit fits both VQ35HR (350Z, G35) and VQ37VHR (370Z, G37, Q60) models.
Q: Will this reduce drone?
A: Yes! The built-in resonators significantly reduce cabin drone compared to non-resonated test pipes, making this ideal for daily driven cars.
For off-road/race use only. Removes catalytic converters - not legal for street use. Will not pass emissions testing. RWD models only - NOT compatible with AWD. Check local laws before installation. Professional installation recommended.