It didn't do to bad. Nothing to gloat over. Lol but I might have to send the ems back to AEM. My a/c won't work. tried it in 2 other integra's and same verdict. They(Aem tech) want me to try one more thing and if that don't work then I send it back.. other than the a/c not working right now, I like it. Very smooth revving thru the rpms.