Metallic Catalyst Carrier for Audi RS5 300/400 CPSI

Upgrade your exhaust architecture with this high-flow metallic catalyst carrier engineered for demanding Euro 4, 5, and 6 environments. Specifically referenced for Audi RS5 applications, this KSRCAT unit features a durable metal honeycomb core that withstands intense thermal cycling and vibration without the fragility associated with ceramic substrates. Offering selectable densities of 300 or 400 cells per square inch (CPSI), the carrier allows precise calibration between emission retention and exhaust scavenging efficiency, ensuring optimal turbo spool and torque delivery across varied boost stages.

Constructed with universal OBD compatibility, this catalyst measures exactly 127mm in diameter and 75mm in length, fitting standard flange profiles found in premium performance builds. The metal construction provides superior resistance to thermal shock and physical impact, making it an ideal solution for track-focused or heavily modified systems where reliability under load is critical. Each unit arrives in neutral packaging to prevent transit scratches and is ready for direct welding or secure clamping installation.

Performance Integration and Usage Tips

Maximize your engine update by matching the CPSI rating to your specific horsepower targets. Use the 300 CPSI variant when prioritizing backpressure stability for daily-driven performance setups, while selecting 400 CPSI to minimize restriction in full-built racing configurations.

• Tolerance Assurance: Manufacturing allows a dimensional margin of ±0.05mm, guaranteeing that minor variances never compromise gasket seating or exhaust leak prevention.
• Sensor Protection: Preserving the catalytic function is vital for accurate lambda readings; bypassing the substrate can trigger CEL codes and destabilize fuel trims on modern diagnostic systems.
• Thermal Durability: The metal honeycomb matrix resists hot-spot cracking, offering extended lifespan in high-GT oil and exhaust gas temperature scenarios.

Technical Specifications

• Brand: KSRCAT
• Core Material: Metal Honeycomb
• CPSI Ratings: 300 | 400
• Dimensions: Diameter 127mm × Length 75mm
• Compatibility: Euro 4/5/6 Universal / OBD Reference
• Origin: Mainland China
• Packaging Quantity: 1 Piece

Package Includes

• 1 x Metallic Catalyst Carrier Assembly

Operational Warnings and Guidelines

• Modified Vehicle Restrictions: Warranty coverage is void when installed on engines with significant aftermarket modifications; custom data validation is required for altered powerplants.
• Emission Integrity: Do not remove or dilute the catalytic surface area beyond functional minimums; excessive reduction compromises chemical conversion rates and degrades downstream component health.
• Commercial Inquiries: Wholesale buyers seeking bulk quantities or bespoke dimensional adjustments should contact customer service directly to coordinate custom specifications.

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