About this episode
You might love the look and sound of your flame-tune, but is it killing your catalytic converter (CAT)? In this interview, Matt Latino from G-Sport by GESi explains the limitations of factory catalytic converters and why performance builds often require something more capable. Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in G-Sport’s aftermarket catalytic converters are EPA-compliant, stainless steel, and designed for high horsepower, but they’re not indestructible. Matt dives into the real-world causes of CAT failures, including improper sizing, rich tuning, and aggressive launch control or anti-lag strategies. Burble, flame, and pop tunes might be fun, but they push unburnt fuel through your exhaust and straight into your catalytic converter — which can result in thermal overload or even complete failure. Like tyres on a track day, pushing your CATS too far too often will shorten their lifespan dramatically. Matt shares practical advice on how to make power in a street car while keeping your CAT alive, and what makes GESi’s designs different from cheaper OEM-style ceramic core converters. Many exhaust specialists already include the likes of G-Sport CATS in their complete systems, so it's possible you might even have one and be benefiting from the performance gains. ------------------------------------ TIME STAMPS: 0:00 - G-Sport by GESi 0:22 - Limitation of Factory Catalytic Converter 0:53 - Exhaust Backpressure 1:06 - Aftermarket Options 2:10 - Aftermarket Vs OEM Construction 2:29 - Why OEMs Use Ceramic 2:39 - Stainless Steel Construction 2:50 - Not Bulletproof 3:20 - Tuning Mistakes 4:00 - Everything In Moderation 4:45 - Tyre Analogy 5:00 - Thanks Matt! 5:30 - BUILD.TUNE.DRIVE