was about to say the same there join up and become a premium member there fella then you can get discounts... I would usually go to GSF and take the 15%.. or offeset and get a branded one... Most blocks come with a G on them so worth checking. Also as how long has it been sat on the shelf? They do discharge to air (I'm in the business) and if they sit too long they will never operate correctly. Try and ensure it is less than 6 months and you give it a good charge on the car once fitted. If it comes with a install guide read the small print. Manufacturers do differ slightly with the way