Earlier this week I had my Steeda subframe bushings installed. I can feel the difference in handling and launching from a complete stop. The kit also came with the correct 14mm bolts and rear bolts with a round head to allow the use of wider tires. After the install I purposely took big curves at high speeds and launched it hard. The IRS feels a lot better now, it doesn't shift or move around and is much more predictable. Also I don't get wheelhop anymore. In case you all are wondering I had Shawn and Greg of the DPR install them in there new shop in San Diego. They charged half the price of JBA and more then 2/3 cheaper then Johns Mustang classic. Next up Steeda subframe bracket kit