I want to get a new backbox for my 172 MkII. I dont really want a de-cat system, just make the back of the car look better and give the engine a better sound. I do quite a bit of motorway driving so dont want to be deafened. I gather the Magnex 6x4 is pretty loud. Are there any other options or am I wrong about the Magnex? Dont really want to get one fitted and find I need ear defenders on the M4!
Any advice would be appreciated.