BOSCH 9601 OE Fine Wire Double Iridium Spark Plug - Single

Put these in my project 2005 Chevy Blazer and very pleased with the performance.

Excelente

These got rid of the misfire in my 99 Sierra truck is running like new so smooth with a bit over 300k miles on it

Good spark plugs

I own a 2000 Chevy Tahoe 5.7 l and I had a cylinder misfiring so I decided to replace all the plugs I replaced the misfiring cylinder first and the truck worked okay but I knew that it could be improved I replaced the other seven plugs and the truck's been running great and gas mileage has improved we had -10° weather quite a bit this winter and the truck starts like a dream every morning

I would buy again.

I ordered these plugs along with other items for my 1999 chevy suburban, I would truly like to give a good review but for some unknown reason amazon has split my order up into three parts, they sent me four of the eight plugs to me but I have a wait of up to a month before I get the other four so I cannot use them. So they will just look nice sitting on my shelf, they do look pretty I suppose in there little boxes.Update! I now have all eight of my plugs and they fitted perfectly, no adjustment necessary on these which is great, just replace the old ones and thats it. vehicle (1999 Chevy suburban K1500) started first time.

Wow, I use Bosh stuff when I can, but these Spark Plugs boosted the power of this engine a lot!Rarely have I noticed much differencein performance when changing the spark plugs, but this made a huge improvement.The old plugs still looked good, electrodes were still in shape.