This is polished alloy header tank for the 2011 onwards Cooper S Diesel (2 Litre). It is a direct replacement, utilising the original mountings and tank pressure cap. Hand crafted and polished in the UK making for an easy fitment and replacement. All Forge Motorsport products come with a limited lifetime warranty. All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.