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Circuit Werks

Resonated Catless Test Pipes for 350z VQ35DE

$249.99 $199.99 Save $50.00

SKU: TP-NS350Z03-RTP

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Circuit Werks 2003-2006 Nissan 350z Resonated Test Pipes are newly designed to enhance the sound of your VQ motor. These pipes smooth exhaust flow, reduce drone, and offer additional performance gains over typical test pipes. They are compatible with both automatic and manual transmissions, though O2 extensions may not work with automatic models.
Show original supplier description
The Circuit Werks Resonated Catless Test Pipes are engineered for the 2003-2006 Nissan 350z models equipped with the VQ35DE engine. This newly designed resonated test pipe system aims to enhance the exhaust note of your VQ motor, promote smoother exhaust flow, and significantly reduce exhaust drone. These test pipes offer a noticeable performance gain compared to standard test pipes. They are constructed from durable stainless steel and feature a 2.5-inch outer diameter with a 2.25-inch inner diameter. Integrated flex pipes are built in to effectively absorb motor movements, ensuring longevity and reducing stress on the exhaust system. Installation is straightforward as they are designed for direct bolt-on application, and O2 sensor extenders are provided. It is important to note that these test pipes replace the factory catalytic converter and are intended for off-road use only. Consequently, they may not pass emissions tests in all states. Installation instructions are not included with the product. These pipes are compatible with both automatic and manual transmission models, though the provided O2 extensions may not function with automatic transmissions.
Vehicle Symptoms
  • Check engine light for catalytic converter efficiency
  • Exhaust smells like rotten eggs
  • Decreased engine performance
  • Rattling noise from catalytic converter
  • Failed emissions test
Diagnostic Codes
  • P0420 – Cat Sys Efficiency Below Threshold (B1)
  • P0430 – Cat Sys Efficiency Below Threshold (B2)
Relevant Conversations
  • Nissan 350Z P0420 fix catless test pipes
  • 350Z exhaust drone solution resonated test pipes
  • Circuit Werks resonated test pipes review
  • 350Z cat delete vs high flow cats
  • Best test pipes for 2003 350Z VQ35DE
  • 350Z check engine light after test pipes
  • 350Z test pipes install guide hour
  • 350Z loud exhaust with test pipes
  • 350Z test pipes O2 sensor spacer
  • 350Z cat efficiency code P0430 fix

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandCircuit Werks
Part NumberTP-NS350Z03-RTP
CategoryExhaust

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