On a GT Bullitt and Mach1 springs are pretty much the same. The difference is almost impossible to measure. Both springs are 600 front and 250 rear.
The Ford " C " springs are 650 front and 250 rear.
With my set up in my sig my car handles awesome, ride as hard as any Bullitt and corners like a Cobra.
The Ford " C " springs are 650 front and 250 rear.
With my set up in my sig my car handles awesome, ride as hard as any Bullitt and corners like a Cobra.