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  • Replaces the restrictive factory cats with high-performance HJS Racing Sport Cats for maximum performance and sound
  • Fabspeed's Supersport X-Pipe Exhaust System for the Ferrari F355 offers significant performance increases and weight savings vs. the factory system
  • Fabspeed's Sport Catalytic Converters include O2 sensor bungs in factory location to insure no C.E.L is triggered; Complies with emissions regulations
  • We use HJS 200 cell catalysts which are tri-metallic. HJS cores are produced by Emitec, a Tier 1 supplier to almost every European automobile manufacturer, and completed by HJS in house to exact specs. HJS produces everything from catalysts for extreme racing use, FIA approved, to Euro 6 compliant direct replacement catalytic converters. We take pride in using HJS catalysts and we're the leader in utilization and sales in the US and second largest in the world! It's hard for me to compare to Hyper-Flow, as they don't provide too much explicit information about the origins and performance of their catalysts.

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Ferrari F355 Sport Catalytic Converters


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  1. Great! 5 Star Review

    Posted by on 2nd Mar 2017

    Love the sound these produce! Makes the car sound like it should have. Classic Ferrari V8 unleashed!

Ferrari 355 Spider with Fabspeed Catbypass Pipes/Tubi Exhaust ()

Product Description

Replaces the restrictive factory cats with high-performance HJS Racing sport cats for maximum performance and sound                                                        


  • Fits all Ferrari F355 vehicles (1994-1999)
  • Improves power and throttle response
  • Saves weight from the vehicle versus factory restrictive cats
  • Constructed with Fabspeed-proprietary 200-cell HJS high-flowing catalytic converters using T304L stainless steel
  • Simple bolt-on, direct replacement for stock cats
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.

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