ALOT of people are putting on slip-on pipes on their Nytro's, but haven't seen anybody that can confirm that their sled actually runs better after putting one one. Excell had dyno sheets to prove theirs, but has anybody taken a fully stock NYtro, put a pipe on it, and run up a hill or on a field next to a completely stock Nytro? Or is the pipe just there for sound and some 'weight-savings'? Starting to look like people put them on just like cans on 2-smokers..? Or, has anybody actually proofs that their pipe works for other than sound?