Just got the 3" exhaust system hooked up

68 fish, 416, TTI headers. used a Jegs generic 3" X-pipe and a set of 3" flowmaster 40s. Mufflers to the rear like the TTI X pipe system. Dump on the inside of the rear tires. Sounds pretty good.

The car did not lose any speed on top and the ET was actually a tad quicker. Was not able to weigh the car to see how much was added.