Do they really do that much in performance for a Banshee that they would put it over the edge against a YFZ/450R?

 

Yes it will help a lot. I would go with trinity or lrd

 

it makes a big difference i just got mine running after getting the frame powder coated and put on LRD pipes i could beat my friends 400 ex when it was stock and his had pipes filter and jetted now i goyt my pipes on and i can flat out take him no problem but you need traction or it spins alot in dirt also the front end comes up alittle easier now its well worth the money