Has anyone used the products? If so what do you think, 400ex cross-country and trail riding, not a moto-x bike.

 

PEP shocks are top of the line. They have a LONG waiting list for new shocks. Some of the PRO class riders are using TCS or AXIS shocks also. TCS and AXIS both make a version of PEPs ZPS shocks (Zero Preload System). PEP steering stabilizer is also good. I seen allot of Denton stabilizers on quads at the races. A stabilizer (and shocks) will improve handling no matter where you ride.