The oval pipes are factory sports exhaust for the early S1 only.
I think it's probably a librands system too.
The quad pipe came in for late s1 and onwards cars. Not sure why though.
The exhaust at the front is different... on the later S1 cars the back one of the cat's is seperate to the silencer.. on the early S1's the cat is directly attached to the front of the silencer.
The early Oval units are often caught as the final mini-silencer just behind the oval ends hang down in very vulnerable position.
If it's quads it's a Librands system.
