Unlock hidden horsepower and transform the driving experience of your Porsche 970 Panamera Turbo or Turbo S with the Untd. Performance Catless Downpipe. Engineered for the first-generation 4.8L twin-turbo V8, this downpipe removes the restrictive factory catalytic converters to dramatically improve exhaust flow, turbo response, and sound. The result is sharper throttle feel, faster acceleration, and a more aggressive exhaust note—perfect for performance builds and enthusiast-driven setups.