I own the 2010 RTSE5 PE551 and just finished modifying the front half of my ride. I replaced the sway bar with the RonJon bar and links from TMS motorsports at a savings of $100 and less than 1 hour work by driving up on car ramps, removing the skid plate and 2 screws holding the trunk. then ordered from Amazon.com 2 of Federal SS-657 Performance Radial Tire - 165/65R14 79T Sold by: Autoplicity online for $48 each (free shipping), took the wheels and tires to Discount Tire and had them mounted and balanced for $40 (no weights required). stability enhancement was very noticeable and settled in on 22 PSI and could turn tires while sitting still like I was on ice. today I just got back from Tousley Motorsports where they did a lazer alignment and the ride home was awesome. I had to keep looking down at the speedometer to check my speed it was so smooth. the ride sticks to the road in the curves at 85 MPH better than it did when it was new. going on multi state rides, facebook chat, and groups on the flood run, I have learned that keeping everything original and old technology is not the path to rely on. I have almost 67K miles, and a new ride. just thought I would share my joy and cost savings. I have less than $550 into this venture.