Http://hpisavagex46.wordpress.com. Here is the Bluebird high torque steering servo for 1/8 buggies. Bluebird electronics specially designed this servo for the racer in mind. It is built to withstand the heat build-up from high-speed off-road buggy racing. You are less likely to fry this servo from overheating. I got mine from Hobbyking.com
Comes with a set of screws, shims, and servo horns
Servo specs: This is a dual-bearing metal gear servo. It contains a heatsink middle case. This servo runs on a 3-pole carbon brush motor. This servo produces 142 oz, or 10.2 kg of torque when powered by a 6V receiver pack.
This is a good replacement for stock Redcat, BSD and HSP steering servos, producing considerable torque at good speed. Even Hpi Savage X owners will benefit from this as stock HPI SF-1 servos produce measly 6kg torque at 0.17s.
The Bluebird BMS-616MG+HS servo is available at: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8771