Frequently Bought Together
Flashark Catless Test Pipes for 2008–2013 Infiniti G37 / 2014–2018 Q50 & 2009–2018 Nissan 370Z 3.7L V6
1 Item · Test Pipe / No Exhaust Header / No Cat-back Exhaust · SKU: FLES08321
$149.99
Product Specifications
Downpipe / Test Pipes for G37, Q50 and 370Z 3.7L V6
These Flashark catless downpipe test pipes replace the factory catalytic-converter sections on listed 2008–2013 Infiniti G37, 2014–2018 Infiniti Q50 and 2009–2018 Nissan 370Z models with the naturally aspirated 3.7L V6. Owners looking for a G37 downpipe, Q50 test pipes or a downpipe for a 370Z can use the fitment table below to check this specific pair of stainless pipes. The pipes connect the front exhaust to the Y-pipe area.
Specifications
| Part | Pair of catless test pipes replacing the factory catalytic-converter section |
|---|---|
| Material | Stainless steel |
| Listed inlet and outlet size | 2.5 in |
| Construction | Mandrel-bent tubing, TIG-welded joints, machined flanges, and pre-welded oxygen-sensor bungs |
Key Features
- Pair of test pipes: Replaces the left and right factory catalytic-converter sections rather than the Y-pipe or cat-back.
- Mandrel-bent stainless tubing: Provides a formed exhaust path through each bend for the front-exhaust location.
- TIG-welded joints and machined flanges: Provide the pipe-to-flange construction needed at the exhaust connection points.
- Pre-welded oxygen-sensor bungs: Provide mounting locations for the vehicle's oxygen sensors; confirm sensor position and connector reach on your car.
What's Included and Not Included
- Two catless stainless-steel test pipes, flange gaskets, and installation hardware.
- Exhaust headers, a Y-pipe, a cat-back exhaust, and catalytic converters are not included with these test pipes.
Check Before Ordering
- If selecting a different style on this page, confirm its included parts and vehicle fitment separately; the table above describes the test pipes.
- Compare your existing front-exhaust flanges, downstream Y-pipe connection, oxygen-sensor locations, and hardware needs with the part before installation.
- Do not use this fitment table to select these test pipes for a Q50 2.0T or 3.0T, a Q60, a 350Z, or a G35.
- These catless pipes replace emissions-control equipment. Check the rules that apply to your vehicle and location before purchase or use; no road-use or emissions approval is stated for this SKU.
- A check engine light may occur after installation; exhaust sound and cabin noise depend on the rest of the vehicle's exhaust configuration.
Related Exhaust Options
For a larger front-exhaust package, see the 370Z and G37 header and test-pipe kit. For a compatible rear-system project on a 370Z, see the 370Z single-tip cat-back exhaust. Verify the fitment and connection points of each product separately.
Shipping & Returns
Free U.S. Shipping: Orders are typically processed within 1–2 business days and delivered within 7–9 business days. Additional charges may apply to remote areas.
30-Day Returns: Unopened and unused items in their original packaging may be returned within 30 days of receipt. Return shipping is covered for verified quality issues.
Worry-Free Delivery: Optional protection against eligible loss, theft, delay, or transit damage is available at checkout.
