Glenn!
I run my pipe back to just in front of the rear end, and then point it toward the ground. Never is it too loud. Barrys right about the "lobak" mufflers. They'll out last the car and 1/2 the cost of the suitcase mufflers.And their made in CALIF. Put it back at the bumper. Use a 31/2" or 4"ID model and expand your tail pipe to fit. No back pressure and no noise. Try it / you'll like it. DICK