The 2.5″ TeraFlex budget boost is the most economical lift for the JK Wrangler. The budget boost is designed for JK owners who wish to lift their vehicle without many modifications. The budget boost will increase off-road performance. Several innovative features of the TeraFlex budget boost are found in the exclusive spring retention spacers that do not allow the spring to drop out during extreme articulation. The kit comes with spacers, bumpstops, rear trackbar bracket, rear swaybar links and brakeline ext. hardware. This kit will allow you to run up to a 35″ tire (aftermarket wheels with 4.5″ backspacing or less are required.) Fits all JK Wranglers including Rubicon and Unlimited.