Drivetrain parts are some of the most effective ways to change how your Cobra drives and feels on the road. The 1999 to 2004 SVT Cobras came with fairly tame gear ratios that never really did them any justice, but swapping those factory rear end gears out for a set of 3.73 or 4.10 gears will make your SVT Cobra come alive and jump off the line like nobody's business. The other weak link in your Cobra's drivetrain is its independent rear suspension that can't hold the immense amount of horsepower and torque that your Cobra is easily capable of making. If you don't want to swap out the IRS for a complete straight axle, then make sure to grab a IRS differential upgrades from Billetflow and Maximum Motorsports to keep it all in one piece when stack on the power. To really shore up your Cobra's drivetrain, check out our selection of Cobra clutches and flywheels or our 1999-2004 SVT Cobra suspension upgrades.