Hey sorry for the late reply but Ive only just got back on the internet. I have some photos with this thread and hope someone can help me. I made the airbox myself out of aluminium and used silicone to make it air tight.
There is a small pipe at the front of the air box about 50 x 200 mm, and it is piped to the front of the car, where the fog light on the right side used to be.
The exhaust is a 3 inch pipe from the cat conv and the actual muffler is about 4 inch and the tip is 5 inch. Is that too big? It sounds good especially when I drive the car hard.
Any help or comments would be appreciated.
Thanks