Berk 60 mm Stainless Test Pipes – Nissan 350Z & Infiniti G35
Uncork your VQ35DE. These dual 60 mm Berk Technology test pipes replace the restrictive factory cats with free-flow 304 SS tubing, built-in CEL fix, and extra O2 bungs for precise wide-band tuning.
Why Upgrade to Berk Test Pipes?
- Big flow gains – straight-through 60 mm piping maximises exhaust velocity.
- CEL reduction – integrated mini-cat spacers cut check-engine lights ≈ 95 % of the time†.
- Tuner-friendly – extra O2 bung on each pipe for left & right wide-band sensors.
- True 304 stainless – mandrel-bent, TIG-welded tubing and flanges resist rust and cracking.
- Bolt-on install – re-uses factory hangers; gaskets and hardware included.
Vehicle Compatibility
| Year | Make | Model | Trim | Engine |
|---|---|---|---|---|
| 2003-2006 | Nissan | 350Z | Coupe | VQ35DE |
| 2003-2007 | Infiniti | G35 | Coupe | VQ35DE |
| 2003-2006 | Infiniti | G35 | Sedan (RWD/AWD) | VQ35DE |
For VQ35HR & VQ37HR applications use Berk part # BT1407.
Technical Specifications
| Tubing Diameter | 60 mm (2.36 in) |
| Material | 304 Stainless Steel |
| O2 Sensor Ports | Built-in mini-cat spacer + extra bung per side |
| Weight | ≈ 9 lb (pair) |
| Finish | Brushed stainless |
| Use | Off-road / race only |
What’s in the Box
- (2) 60 mm test pipes with welded CEL fix spacers
- (2) additional O2 bungs with plugs
- Gaskets & zinc-plated hardware set
Installation Notes
Remove factory catalytic converters and bolt test pipes in place using supplied hardware. Average install time: 1 hour on jack-stands.
OFF-ROAD USE ONLY. Not legal for use on pollution-controlled vehicles in public highways. Verify local regulations before installation.
FAQ
Will I still get a CEL?
The built-in mini-cat spacer eliminates CELs in roughly 95 % of cases, but results vary by vehicle condition and ECU calibration.
Do I need a tune?
A tune is not required but recommended to maximise power gains and ensure safe AFRs.
How loud will my exhaust be?
Expect a deeper, more aggressive tone; overall volume increase depends on the rest of your exhaust system.
†Based on customer feedback and in-house testing under normal operating conditions.