We have a birthday coming up in our family, so which pipe should I buy for my 13 year old kid's YFZ 450? I have pretty much narrowed it down to either CT Racing or Sparks Racing, ... so which one is going to work the best for sand duning? Thanks in advance.

Phil.

 

I'm a fan of CT I have one on my raptor . I would buy a HMF slipon and leave the stock head pipe. My riding partner bought the CT and has since went back to the stock header with the CT muffler The HMF seems to run real good on the 450's My opinion

 

sparks for the 450