Daft Question, Simple Answer reqd

[Steve kay]

On My 2CV the long exhaust has been replaced by a much shorter side emission arrangement, primarily to prevent it being sacrificial whilst trialling. I have wondered that, when the tin worm consumes the Ruby exhaust a similar side emission pipe would be a sensible replacement for the current extended route the gases take. Would shorter and more direct pipe contribute to performance, or make so little difference as to be unnoticeable?