Posted on October 29, 2015 by Robert Standard We have an early `70’s Porsche Speedster kit car in. This vehicle was built in 2002, but has been sitting for several years. We got it back up and running, changed the oil and replaced the muffler. This is the old muffler, it is rusted and has a bad baffle inside causing a loud whistle at idle. This is the new muffler we just got in. The chrome tips are covered in cardboard to prevent scratches during installation.