[jhv48]

The stock shocks and springs are fine but can be a bit bouncy. The adjustable shocks and heavier springs can tune the ride to your satisfaction. I, personally, didn't like the softness so I upgraded to the adjustable shocks and heavier springs. If you're a heavy guy and/or often take a passenger with you, you might prefer a beefier setup. I'm not, but I always travel with my wife as a passenger so the total cabin weight is always about 310 lbs.

As for the side pipes, if you spend big bucks buying a high horsepower engine, the stock side pipes will effectively choke its performance. If you go with a sub 400 horse engine, the stock pipes should be fine. Mine had an inside diameter of 1 3/4" and were very quiet. I swapped them for some 3" diameter pipes so that my 550 horsepower engine could exhale efficiently. Seemed to make a heck of a difference in the seat of the pants feel.

Once again, the stock spf is fine as it comes. These are just some of the things I've noticed and addressed in my 20,000 miles of driving one.