New Mufflers

My brother called and he just had new mufflers and tailpipes installed
on the 70 Duster. The guy at the exhaust shop said that my car had
the original pipes on it from manifolds to tail pipes. My car had the
turned down tail pipes being a Calif. car. The shop told my
brother that the exhaust was still in good shape and only needed
mufflers and tails, he also said that 2 1/2 pipes would cause some
clearance problems with the torsion bars? I could'nt figure that one
out. Sound rite to anyone out there? Anyhow, it has new Raven
mufflers and straight out tails, I know its not original but I like straight
out pipes so much better. Some of the guys at the shop were also Mopar
gurus and they gave him a great deal on chrome tips off a 70 Road
Runner!! My brother said it sounds great can't wait too see it and take
it for a spin. They also capped off the heat riser.