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The Ferrari 488 GTB and 488 Spider are among the most thrilling mid-engine supercars ever produced — and the F154 3.9-liter twin-turbo V8 at their heart is one of the most awarded engines in automotive history. Producing 661 HP from the factory, the 488 already delivers staggering performance. But the factory catalytic converters create significant backpressure directly downstream of each turbocharger, leaving measurable power on the table. Replacing them with aftermarket downpipes is the single most effective bolt-on modification you can make to the F154 platform.This guide covers everything you need to know about upgrading the downpipes on your Ferrari...

The Lamborghini Aventador is a different beast. Powered by the L539 6.5-litre naturally aspirated V12, the Aventador has no turbochargers — which means no traditional downpipes. But the exhaust modification principle is identical: the factory catalytic converters are the single biggest flow restriction in the exhaust system, and replacing them with high-flow sport cats or catless race pipes is the most impactful bolt-on exhaust modification for the V12. This guide covers the Aventador’s exhaust catalyst section — what many enthusiasts refer to as “race pipes” or “cat-delete pipes.” The Aventador Exhaust System The Aventador’s exhaust system routes V12 exhaust from...