The Turbo Technology twin-turbo kit runs at about $7,500, so expect to pay about $1,100 for installation-not including any specialized tuning. That runs another $500 or so.

661 HP Twin-Turbo LSx Jeep Willys "Deathtrap" Drag Races Challenger Hellcat Published: 26 Feb 2016, 05:39 UTC • By: Andrei Tutu 1 photo ...