Check out my option parts that I have been using during the 2015/2016 winter season at EOS races. The following parts will improve the overall performance of your XB4 on carpet tracks.

363352 & #363351 Alu Uprights

Gives more rotation from the rear end of the car, which allows my XB4 to turn faster in corners.

366220 Servo Mount

Gives additional increased steering and improved flex.

362573 Alu Steering Plate

With improved & increased steering, you should improve steering predictability. This steering plate increases steering predictability, and it gives you additional set-up options.

362478 Anti-Roll Bar 1,8mm

More steering also means more chances to flip your car. I use these anti-roll bars at both front & rear ends of my car to avoid traction rolling; they are perfect for the high-grip conditions of EOS carpet.

369704 Lightweight Body

This is another very good option to avoid traction rolling, and the lower weight of the body improves your landings.

362112-G, #363121-G, #313111-G Graphite Arms

If you have more steering, you may want more cornering speed. The graphite arms give more cornering speed in high-grip conditions.

335030 Diff Bevel & Satellite Gears

These 'last but not least' option parts offer much better durability and a better traction feeling.

M. Wollanka

Source: M. Wollanka