what is the difference between a slip-on pipe, and full exhaust system for a quad?
A slip on is the muffler, thentire system goes all the way to the engine.
A slip on canister can run you in the neighborhood of $250-500, depending on what your preference is. As far as any advantages that go with a slip on, might gain a wee bit more mid to top rpm hp, but nothing significant for your $250-500. Sound will be better than the stoker, remember, the OEM has to conform to noise standards also. A full system, let's start at the price; $800-2500, depending on what you are trying to accomplish. The full system is tuned to maximize hp on your specific machine. The other plus is, weight. You'll save on lot's of weight. Most streetable stainless systems can cost somewhere around $1000, give or take. Ones for racing made from titanium can run over $2000. Do what your heart tells you on this one, if sound makes you happy, check out other bikes like yours to see (hear) which you like the best and go put down the road!
a slip on pipe is just the muffler. a full exhaust is the header pipe (that comes out of the motor) and the muffler. If your just doing recreational riding, a slip on should suit you just fine, however, if you plan on racing, i would recommend the full exhaust, as it gives you more power than just a slip on. and remember that you must re-jet your carb after installing a slip-on or full exhaust
I'm biased, I think all horses should be trained to respond to a gentle bit. The only bit I'll use is a french link snaffle. This is on OTTB's also. It will take work getting your horse to listen to you but it is well worth it in the end. Just remember any bit can be harsh in the wrong hands.
Well, if it's working on your horse and not hurting it, then it shouldn't be an issue. If she's got sores in her mouth i'd downgrade to a D ring snaffle or an eggbutt snaffle.