What was the purpose of 'side pipes' on old muscle cars? Do they add performance? They seem only good for burning ankles and starting grass fires. - Quora
Small-Block and Side Pipes: This 1969 Corvette is a Survivor from the '70s
Making a Muscle Car SIDE PIPE for the SVO 240z!! - Too Loud??
Mercedes G-Wagon 2 Door | Exhaust Side Pipes | Chelsea truck - Project Kahn
1980 Corvette | With a manual transmission & side pipes no l… | Flickr
EXHAUST SIDE PIPES (FOR NON INJECTION ENGINES) - AK Sportscars
Patriot Exhaust H1165 Chrome Lake Pipe '4' Side Exhaust
1975 Corvette Side Pipes
Shelby Daytona Coupe Oval Side Pipes
Thrush Exhaust - Pretty cool, the old school Thrush Big Chief side pipes on a VW. Got this image from a really cool car blog, with a lot of cool car pictures: