ETS Corvette C8 5.0" High-Flow Catalytic Converters
Maximum flow. Serious horsepower capability. Without the compromises of going catless.
The ETS 5" High-Flow Catted Downpipes are designed for high-horsepower C8 Corvette builds that need exceptional exhaust flow without giving up the benefits of a catalytic converter.
Instead of using the smaller 4" high-flow cats commonly found in performance exhaust systems, ETS steps up to massive GESi G-Sport Gen2 UHO+ 5" high-flow catalytic converters. The larger diameter provides substantially more catalyst and potential flow area, helping reduce restriction as power levels climb.
Why 5" Matters
A 5" diameter core provides approximately 56% more cross-sectional area than a 4" core—19.63 in² versus 12.57 in².
That additional area gives the exhaust significantly more room to flow through the catalyst, making our 5" HFC setup an excellent choice for 1,000+ WHP applications where a smaller catalytic converter can become a restriction.
Big Power Without the Catless Smell
Going catless may eliminate a restriction, but it also comes with one of the biggest complaints on a street-driven performance car: raw exhaust and fuel smell.
Our 5" high-flow cats are designed to provide the flow capacity needed for serious horsepower while significantly reducing the unpleasant exhaust odor associated with a catless setup.
You get a system capable of supporting 1,000+ WHP without sacrificing the street-friendly benefits of a properly catted exhaust.
Complete Direct-Replacement Package
ETS designed the system as a direct replacement for the factory catalytic converter assemblies. Everything needed for installation is included, eliminating the need to source additional hardware or fabricate components.
Features:
- Massive G-Sport Gen2 UHO+ 5" High-Flow Catalytic Converters
- Designed for 1,000+ WHP applications
- Approximately 56% more cross-sectional area than a 4" HFC
- Excellent flow characteristics for high-horsepower applications
- Helps significantly reduce raw exhaust and fuel smell compared with catless setups
- Direct replacement for the factory catalytic converter assemblies
- High-quality stainless-steel construction
- Fitted thermal blankets included
- New mounting studs and nuts included
- New exhaust gaskets included
- Complete installation hardware
- Bolt-on installation with no fabrication required
Fitment:
- C8 Corvette Stingray (LT2 6.2L)
- C8 Corvette Z06 (LT6 5.5L)
Get the flow your high-horsepower C8 needs without going catless. The ETS 5" High-Flow Catted Downpipes combine massive catalyst capacity, direct-fit installation, and reduced exhaust odor into a complete package built for serious power.