Works great..!

Perfect fit, perfect function and a lifetime warranty as long as I own the car? You betcha!

Solid built high quality well packaged.. Wish they fit my car I have an E90 4/2006 build date so it's on the bubble a vin search says use these but they don't fit. Here is how you tell now it doesn't show in pics very well but after 4/2006 underneath the wire connection there is a tab that sticks out in the middle if it's before4/2006 it's to the side. You can easily see the notch on your wire harness just unplug coil look at harness if slit in harness connector is a side slit (I think left side) then it's Pre-2006 But if the slit is in the middle it's after 04/2006

I purchased a well-used three-pedal '09 528xi and it almost immediately developed a bad miss on cylinder 5. There was no mention of coils or plugs in the maintenance records I found and when I saw that I could get a full set of the Delphi coils at a great price I went ahead and did it all. What a difference! I thought the old N52 was smooth when I first got the car but now it's unbelievably silky. You'd never know it had 180k miles on it!

Just replaced the coils because I was having multiple misfires, and as soon as I replaced them heard and felt the difference, my power is back!

I had a misfire in #1 and #3 cylinders. My car was throwing all kinds of codes and soon as I put these in it ran like new!

I bought this 6 pcs. set to replace all the coils on my 2011 X5 35i, so it gets a fresh start (coils, spark plugs). I had 3 types/brands of coils on the car. And 4 of them just shattered into pieces when I removed them. They were very old and the plastic didn't survive. Luckily, one of the old coils was an identical Delphi GN10571 that looked and behaved like new. I kept it as a spare, in the trunk, you never know when you might need it. The not so funny thing was that after I replaced all coils and Bosch spark plugs (bought from eBay), I had a misfire in cyl. #5. I thought it was a coil that's failed, one of the new ones. It turned out to be the spark plug. Good thing I kept the old spark plugs, which didn't look bad. I put in an old one and the engine runs smooth now. So, that one in hundreds of thousands chances you get a new bad spark plug, it can happen.

This product word great easy to install and noticeable difference I would highly recommend them.

On par if not better than stock. No issues and easy installation for any DIY'er.

Engine was running terrible and lots of misfire codes. installed these and now she is running good! I can actually accelerate without a cylinder 1 misfire.