The addition of a Hennessey Performance stainless steel exhaust bumps power on the Porsche Panamera Turbo up to 550 HP and makes the German sled sound like Tom Waits gargling when mom drops the hammer outside the PTA meeting.


According to John Hennessey, they got the Panamera Turbo to turn 452 WHP stock in super sport mode and were able to bump power a full 23 HP at the wheels to a full 475 WHP, giving it around 550-560 HP at the crank, with dual 2.5-inch exhaust pipes piped through four mufflers and quad four-inch exhaust tips. Long-term plans include tuning the computer, upgrading the intercoolers and tweaking the air intake.

Hennessey thinks the engine has a lot of promise and will support a CTS-V embarrassing and reliable 650 HP.

[HPE]