What problems can arise from altering the suspension from a factory setup? Why would you or would you not do so?

Altering the suspension from a factory setup can lead to several potential problems:

1. Reduced Comfort: The factory setup is designed to provide a balance between comfort and performance. Altering the suspension can make the ride harsher, especially on rough roads.

2. Increased Wear and Tear: Modified suspensions can put more stress on the vehicle's components, leading to increased wear and tear. This can result in more frequent repairs and higher maintenance costs.

3. Safety Issues: Improperly modified suspensions can negatively affect the vehicle's handling and stability, potentially making it unsafe to drive.

4. Voided Warranty: Many vehicle manufacturers will void the warranty if the suspension is modified, leaving you to cover all repair costs.

5. Legal Issues: In some areas, it's illegal to modify a vehicle's suspension beyond certain limits. You could face fines or other penalties if your vehicle doesn't comply with these regulations.

Despite these potential problems, there are reasons why you might want to alter the suspension from a factory setup. If you're looking to improve your vehicle's performance for off-roading or racing, a modified suspension can provide increased ground clearance, better handling, and improved traction. However, it's important to have these modifications done by a professional to ensure they're done correctly and safely.