The MMX Performance billet oil filler cap has been designed to instantly give your under-bonnet a boost in the aesthetic department and joins our existing range of engine dress-up products. Machined from billet T-6061 aluminium, the carefully considered design gives ample surface area for your fingers, making installation and filling your engine oil that little bit easier. Available in both a deep black or signature dark anthracite anodised finish, so you can choose to either blend in, or stand out - whichever works best with your engine bay theme. This filler cap will fit all engines with the rounded filler cap (shown in product images) Please note you will need to re-use your original oil filler cap seal. Please note if the part is under excessive heat for prolonged periods of time, it can affect the overall finish which is unavoidable with anodised aluminium products.