I'm torn between a full length big pipe system on #383 or a '65 Shelby style 3" side exit exhaust. Who is running side exhaust? Which mufflers? Stainless Works has round Chambered mufflers that are 3" in/out and only ~3.5" in diameter. Dynomax has round race 3/3 mufflers that are 4" in diameter, they've ..got.. to be loud. Suggestions? Loud (Flowmaster 2-chamber loud) is fine. Any pics?