Borlas site. But they dont market just the tips for Ranger Raptors. You have to call and ask them for pricing. Its what I did. They have a universal black clamp style. But if you want something specific for the Raptor. Call and ask.
Stay away from any pedal commander type product. This truck doesnt need it. It may be the truck is still learning after the tune. At best take it to a dealer and explain the problem. They may have a better idea than keyboard mechanics. But avoid the throttle improvement scam. I had a pedal...