Hi mates, check out and inspire with my option parts which I use at my XRAY XB2. These parts improve the overall performance of a car on a carpet

- Alu Rear Upright #323351
I like to use these especially on high traction surfaces as they make the car more stable. Also they last forever.

- Wheel Hubs 12mm +3mm #365358
On high traction, widening rear end of the car is a great way to get more on power steering.

- Composite Suspension Arms Rear Lower #323120-G & 323110-G
Stiffer rear arms will give you more corner speed on high traction and also makes the car land better.

- Stainless Steel Battery Weight 50g #326180
Adding weigh to the center of the car makes the car easier to drive and easier to land after big jumps.

- Wheel Hubs 12mm -0.75mm #365354
I like to have little narrower front end on most tracks just to get more steering.

- Steering Block Extensions - 1 slot #322291
I use these almost on all conditions. More steering on tight corners.

- Alu Steering Arms #322510
I use these on all conditions also. Steering will feel more accurate after fitting these to your XB2.

- Brass Front Lower Arm Mount 26 Kick-Up #322312
This part will give more weight to front of the chassis which helps the overall steering of the car.

- Composite Suspension Arms Front Lower #322110-G
Stiffer arms in front will make more precise feeling of the car.

Source:

J. Valander