High-Performance Catless Downpipe | Direct-Fit for Nissan 350Z/370Z & VQ37HR Engines

Unlock significant horsepower and torque gains with this Test Pipes Decat Downpipe, engineered for the VQ35HR and VQ37HR engines. By eliminating restrictive catalytic converters, this catless straight pipe design dramatically reduces exhaust backpressure. This allows for faster turbo spool (on forced induction builds) and a more aggressive exhaust note, delivering measurable performance improvements for your Nissan or Infiniti platform. Features and Benefits - Mandrel-Bent Construction - Ensures smooth, consistent internal diameter throughout the pipe to maximize exhaust gas flow and minimize turbulence for optimal power gains. - Direct OEM Replacement Design - Precision-engineered to bolt directly to your factory exhaust manifold and mid-pipe, ensuring a straightforward installation with no cutting or welding required. - High-Temperature Flanges and Gaskets - Includes durable gaskets and reinforced flanges to provide a secure, leak-free seal that withstands extreme exhaust temperatures. - T304 Stainless Steel Material - Offers superior corrosion resistance and long-term durability compared to standard aluminized steel, maintaining its appearance and structural integrity. - Aggressive Exhaust Tone - The straight-through, catless design unleashes a deeper, more raw exhaust note characteristic of high-performance applications. Applications - Performance Street Builds - Ideal for enthusiasts seeking immediate throttle response and top-end power increases for daily-driven or weekend performance vehicles. - Track and Competition Use - Provides maximum exhaust flow for tuned applications, whether naturally aspirated or turbocharged, where every horsepower counts. - Exhaust System Upgrades - Serves as the foundational performance mod when paired with aftermarket cat-back systems or headers for a complete high-flow exhaust solution. - Pre-Turbo Installation - A critical first step for forced induction projects, drastically reducing backpressure before the turbocharger for faster spool and increased efficiency.