You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. We will be happy to help you find the right parts at the right price.
Also replace engine oil and oil filter is compulsory in turbo installation. Overall, there's just 1 principle in turbo installation--'make sure everything is 100% clean. Turbo installation is a professional job, which cannot be done in a garage or backyard by yourself.