Team Losi Racing have just released Low Frequency Springs for the 22 platform. The new springs are designed to increase grip and have less aggressive spring rebound which will make your rig easier to tame when landing jumps. If you have a TLR 22, 22T or a 22SCT or if you just want more details, check out the Team Losi Racing Blog.
For Font springs info check out part# TLR233012
For Rear springs info check out part# TLR233013