Fabspeed Sport Catalytic Converters for 2025+ C8 Corvette ZR1

Description

The Fabspeed ZR1 Sport Racing Catalytic Converters are a no-compromise exhaust upgrade engineered to unlock the full performance potential of the Chevrolet Corvette C8 ZR1 twin-turbo platform. Utilizing German-engineered HJS 200-cell tri-metallic catalysts, this system flows up to 90–92% of a straight pipe, dramatically reducing backpressure while maintaining emissions compliance.

Designed for extreme horsepower applications, these sport cats are rated for up to 1200HP per catalyst and deliver massive gains in turbo response, throttle sensitivity, and overall power.  The result is a sharper, more aggressive driving experience with faster spool, increased midrange torque, and a more exotic turbocharged sound profile. Built from aerospace-grade stainless steel and insulated for high heat environments, this is a true motorsports-derived solution for drivers who want maximum performance without going catless.

Fitment Notes

• Fits 2025+ Chevrolet Corvette C8 ZR1 twin-turbo models

• Direct bolt-on replacement for factory catalytic converters

• Designed for OEM exhaust compatibility and aftermarket systems

• No cutting or welding required for installation

• No ECU tune required for operation, though tuning can maximize gains

Included

• (2) High-flow HJS 200-cell tri-metallic catalytic converters

• Integrated stainless steel catalytic converter housings

• Pre-installed heat insulation and shielding

• Installation hardware (application dependent)

Product Specs

• Power Gains: +91 HP / +141 lb-ft torque (dyno-proven)

• Flow Rate: 90–92% of straight pipe efficiency

• Catalyst Type: 200-cell HJS HD tri-metallic EURO 6 catalysts

• Horsepower Rating: Up to ~1200HP per catalyst

• Material: T304L stainless steel construction

• Weight Savings: ~20 lbs vs OEM catalytic converters

• Heat Protection: Ceramic fiber insulation rated to ~2000°F with Inconel heat shielding

• Compliance: EPA compliant, European homologated, TÜV approved

Product Features

• Near Straight-Pipe Flow with Emissions Compliance – Achieves 90%+ flow while retaining catalytic functionality, eliminating the need for catless setups.

• Massive Power Gains – Significant increases in horsepower and torque across the entire RPM range.

• Faster Turbo Spool & Response – Reduced backpressure improves boost response and transient acceleration.

• Race-Proven HJS Catalyst Technology – Used in WEC and IMSA competition for durability and performance.

• No Check Engine Light – Engineered to operate without triggering catalyst efficiency faults.

• Extreme Heat Management – Advanced insulation and Inconel shielding protect surrounding components in high-boost applications.

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