Suggestions for muscle car sound muffler without drone

this ones on a honda, but its not straight, might be easier to hide something like this.
http://i.imgur.com/hWmrzD1l.jpg

I was thinking about trying to use something like this and cut it to the right size
http://www.summitracing.com/parts/wlk-42321?seid=srese1&gclid=CNqBor6Kl80CFRSUfgodMA0OGA