Most Liked Positive Review
Awesome product. Very satisfied
I bought these coil overs to replace old ones on my grand marquis as well as iridium spark plugs. It took me 2 hrs in the -3* weather, but after I had the last coil over on that new spark plug and fired up the engine I was very satisfied. I took her for a drive down some good country roads and took time dropping it through the gears and testing the acceleration. The GM has electronic throttle body and with the new setup i had quicker acceleration and more power throughout acceleration. Also I think the IACV is bad because the engine would surge kinda before...I noticed the engine runs more smoothly and idles lower now. Good product