Reviewed By Steven E (ROCKWALL, TX) Reviewed for a 2012 Cadillac CTS —9/8/2015 12:49 PM
Was on sale, so I ordered. Easy installation. Comes with a dyno sheet showing expected improvement. No way to quantify, but perception is it feels smoother and accelerates a little easier. Was concerned about noise, but hit the gas and it sounds a little more authoritative, quiet otherwise.