i just want to know because my uncle has this Nissan s14 sr20 and its stock apart from its exhaust. I want to know if its a full exhaust system or just a huge tip. When at idle it sounds good not too loud but you will definitely hear it. when you bring up the rpms to like 5000-6000 it makes a huge sound deffer from below 5000 rpm if that helps. I am just helping him sell the car, he doesn‘t no, when he bought it he didn‘t ask.
An aftermarket full system will have a much larger diameter than stock. Search online for aftermarket full systems to get an idea of what they look like, then crawl under the car.
It probably just spits the exsaust into the water, just like water jets do. If you have ever ridden one, you will notice that the exsaust goes into the water and produces bubbles. Then the exsaust just floats to the top. Same concept.
I know on most SUVs they put the exhaust tip pointing slightly down so that they can load/unload boats without taking in water (put a glass directly upside down into water and the air will hold the water out). The important part is keeping the air intake dry, and maintaining balanced backpressure in the exhaust.
Im not aware of any special engineering that goes into a land rover's exhaust, the main risk to a vehicle during fording is the intake taking in water. That is why you see the snorkel kits. In fact the only fording exhaust provisions ive ever seen is on military humvees.
