I know that some have done this, but after experimenting with a friends NT1, it just doesn't have the same cornering speeds as using the Xray ones. The Universals are well worth the $$. I had a rough qualifier at 301 with a hit into a car(Jerry Evans) that flipped right in front of me, causing a hit into a 4X4. I drove away from it and had my second best qualifier that round.

Quality is worth every cent when it keeps you in the race! Not only are the Xray ones lighter and stronger, they will give the car the free roll that it was designed to have. Don't sacrafice quality for price.