the tips are close to about 18cms from the baffle, but note the exhaust system is adjustable.
so currently on my car they exhaust has purposely been installed on a tilt just to demonstrate that the exhaust can be leveled, and not all wonky.
the exhaust can also be adjusted length wise if i recall correctly. So you can push the exhaust more in under the car. Or pull it out from the car.
did that make sense?