My backbox (from a vr6, doesn't fit properly anyway!) is just about shot on my car, just confirming that replacing it with some exhaust tubing could be a bad idea...
Looking for a cheap to free option as it needs what little money we have spending elsewhere

Don't want it silly loud but have a friend who can bend the pipe and make/weld brackets etc...I've driven it with no center and back boxes and it was pretty horrible, but don't know how much 'silencing' the centre alone would do...