TuningPros LS-107-B Lowering Springs Kit Blue Set of 4 Color: Blue; Lower rate: 1.35-Inch Front, 1.65-Inch Rear ; Spring rate: 350F & 250R Constructed from Japan SAE 9254 cold wounded steel; Corrosion-Protected with phosphate and powder coatings Spring rates specifically tuned for handling and comfort; Provide exceptional response, control and balance Sold as a complete set of 4 springs; Compatible with OEM stock or aftermarket shocks Custom fit for your vehicle; This part is guaranteed to fit: Dodge Charger 2006-2010 (Not fit on SRT8 V8)