StopTech front wheel Big Brake Upgrade for the 2004 Dodge SRT-4. The kit includes ST-20 2-piston sliding front calipers painted red, black, or silver, 7075-T6 billet aluminum caliper mounting brackets, 328x28mm slotted, floating, front AeroRotors, 7075-T6 billet aluminum AeroHats with directional standoffs, StopTech SS (DOT compliant) front brake lines, and . Requires 17 inch or larger wheels, however not all 17 inch wheels will fit.