I have 2 Ultima ST-R GP's, both highly modified. One has the Kyosho Hard Aftermarket Chassis and Aluminum Nose Plate, plus Trinity Aluminum rear a-arm mounts and rear hub carriers. The front shock tower is a JT Racing Products aluminum tower and the rear tower I made from 6061-T6 aluminum. I replaced the stock fuel tank with one from a Ofna Nitro OB4, and I run a O.S. CV 12 that I custom ported with a MIP header and side pipe. Its a good race truck, the tranny and shocks are by far the best i've had in any Nitro Truck i've owned and raced. The only compaints i've had were the stock fuel tank, and it lacks in the steering department.

My second Ultima ST-R is the most modified of the two. I built a new chassis that brought the wheel base out to equal the RC10GT. One of the best things about the RC10GT's is it's steering, so I ditched the Ultima front end for a GT tub chassis front nose plate and suspension. Once again I chose the Ofna OB4 fuel tank over the stock fuel tank. Power on this one is from a Thunder Tiger EVO 12 with a Dynamite header and a Paris Turbo Ring pipe. It came out looking a lot like a GT, but the combination of Ultima and GT parts have made a truck that handles great, and being that its one of a kind, I couldn't be anymore happy with it.