Modifications on vehicles

Question

I would like further information regarding impoundment of vehicles having modifications (performance filters, alloy wheels etc). I like to know what Modification are allowed to comply with the roadworthiness acts.

Answer

This is a very technical question that will be difficult to answer in writing. The BEST way of ascertaining this is by going to a local testing station - they have the data on ground clearance and vehicle emissions which will help you. We can give you the decibels but you will need to test the equipment in action so a test station is the best place to go. If you plan on doing this as a business - purchase the SABS 1047 Code which deals with roadworthiness issues.