The service here cannot be faulted - very slick and efficient with a very concise website. The only minor niggle, and it is minor is that the product I purchased is slightly too small for the application, it's only a few millimetres but it's just enough to prevent it seating properly in the air box. That said it appears to be an excellent product which has enhanced the performance of my vehicle, improving throttle response, too early to tell what effect it's had on mpg, we'll see!!