Hey I want to get a new back box for my car, to make it louder and sound better, but I don't know whether to go straight through, or to order a new one. I don't really want to spend lots of money on it but was thinking about buying a sportex one from ebay, has anyone got any reviews on them or know any better alternatives for roughly the same price I'm looking for something that sounds nice but isn't stupidly loud. http://www.ebay.co.uk/itm/VW-Lupo-1-0-1-4-Sportex-Exhaust-Tailbox-Single-3-/351123754212?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item51c09b4ce4 Any help will be appreciated Thanks