STAINTUNE exhaust systems, for the most part, are simply about replacing the stock muffler. If you can take your stock muffler off with the tools you have, you can install a STAINTUNE muffler. Some of the complete systems, for instance a BMW K 1200 where you are replacing the entire system, require a little more technical aptitude but nevertheless can be done. A second set of hands can often be helpful on full system installs as well but not absolutely necessary. 

One of the best things about STAINTUNE product that we get feedback on from customers and dealers on a regular basis is the ease with which a STAINTUNE exhaust will fit. 

..Where are the installation instructions?

STAINTUNE exhaust systems, for the most part, are simply about replacing the stock muffler. If you can take your stock muffler off with the tools you have, you simply reverse the removal process to install a STAINTUNE muffler.

In the case of complete systems involving replacing the whole exhaust system, or if there is a modification to the stock exhaust mounting procedure, instructions are usually included. 

See also FITTING_INSTRUCTIONS