Reviewed By Patrick T (Mentor, OH) Reviewed for a 2006 Mercury Grand Marquis —1/26/2016 7:12 PM
Easy to install.
Reviewed By John D (POTOMAC, MD) Reviewed for a 2004 Mercury Grand Marquis —3/25/2015 8:42 PM
This upgrade works best with the addition of a cold air intake system, really no point in doing without either. The open flow can be felt as soon as you mesh the throttle. I would definitely recommend this to someone looking to add some power underunder the hood without letting everyone around you know you have it. Also if you do this with a tune up get ready BC you will have a space craft.
Reviewed By Steven E (Corpus Christi, TX) Reviewed for a 2005 Mercury Grand Marquis —3/10/2014 10:01 PM
Good quality, looks great on my Grand Marquis. I can feel the difference in power and torque, sounds awesome when you get on it. Only negative thing is my check engine light came on after about 100miles for MAF sensor. An afe technician will be contacting me soon on how to resolve this issue. Other than that looks very good under the hood!