Are straight-thru exhausts legal on my '70 bug?

2. with the engine running
a. check the exhaust system for leaks

Note: A durable repair to an exhaust system which effectively prevents leaks is acceptable providing the system is structurally sound a. a major leak of exhaust gases from any part of the system

Note: A minor exhaust leak from, for example, a connection joint or a pin hole, is not a reason for rejection
b. assess subjectively the effectiveness of the silencer in reducing exhaust noise to a level considered to be average for the vehicle b. a silencer in such a condition, or of such a type, that the noise emitted from the vehicle is clearly unreasonably above the level expected from a similar vehicle with a silencer in average condition