BOSCH 4418 FGR8DQP Platinum+4 Spark Plug - Single

I love these spark plugs, I've been using them since the product came out upwards of 8 years ago or so (give or take). The Bosch platinum 4 spark plugs are gap-less, so no messing around with gapping. The four prongs ensure a spark every time (no misfires) and allows the placement of the spark right out at the tip of the plug for better combustion, which also allows for longer plug life with reduced carbon deposition. I ran a set of these for 6 years and never once had a misfire. In fact, the only reason I decided to change them after 6 years was due to a leaky valve cover gasket that leaked around the plugs. Over all, great product, well worth the extra money, with a quality name you can trust - Bosch!

Replaced my Iridium plugs on my 2008 Hyundai Santa Fe 2.7 V6 with these plugs...and WOW. I have noticed an immediate improvement in how the engine performs. It responds much better to acceleration, and feels like a new car again (at 100K miles). They were easy to install too. The only concern I had was when I placed them side by side witht he OEM plugs that my car came with, it was shorter in the threads area. After speaking to a mechanic friend of mine, he said that because of the 4 regions, it does not need to sit as far in the engine to cause ignition like the originals...so no need to worry. They still worked out well. If the plugs give me any problems, I'll update my post accordingly.

Returned to Vendor, I signed into Amazon, (I have previously loaded the vehicle I was working on into Amazon's Garage thing) selected my vehicle in the "garage" and did a parts (by name) search. Thinking that all the results would be for MY jeep (after all what's the point of the "garage" if the results reflect items for other than the vehicle that is selected ?) I picked out the parts I needed. Well I got a lot of WRONG parts. I chatted with Amazon on this; they say get a part number then search, so again what's the point of the "Garage" I asked. The answer was "Well after selecting the part a banner appears at the top of the page that tells you if it fits or not." "So I have to go through all 71,000 results to fit the right part correct?".....If Amazon's web masters did their own maintenance and parts searches they would be changing this is a hurry.

Well so far so good. I installed these plugs on a 2006 Toyota Sequoia. Right from the start of the engine after installing these plugs a noticeable change in operation was evident. As of this review, my vehicle is running very good. I have not known it to run any better than after the plug change. This is my second time using these plugs the first being on a Dodge Intrepid of which I owned for ten years before selling, and I never needed to change the plugs after installing these plugs on that vehicle, which ran great from that point on. I have been impressed with Bosch Plat. Plus plugs ever since they were introduced. The technology behind these plugs was adapted from aviation technology which uses a similar design to these plugs. I have always trusted Bosch parts and they have never let me down. When you install these plugs do not assume your gas mileage will increase considerably or your vehicle performance to increase. You can, expect a small but noticeable increase in gas mileage and a smoother running engine. This is a non oem part so do your homework before you try them. Good luck!

Love these plugs. This is my second set. The first set went for 100K miles. Instantly seen an increase in throttle response time. It's enough that I need to get used to the gas pedal again when starting off from a dead stop. These are in my 2005 Tundra 4WD double cab. (Yes, I've read Tundra blogs that say don't use Bosch in a Toyota. I've had Toyota's since 1985 and prefer Bosch plugs based on my own experience and proven performance.)

The actual sparkplugs work amazingly, the packaging was terrible. The plugs arrived in the box with some of the bubble filler. During transport a few plugs managed to fall out of their independent packages and flail around inside the box, one was damaged slightly but nothing serious. They all work well in the tundra

My car has a good ignition, it's good for firts change, that has a great quality and easy to install

I am told that you should use one heat range hotter than they call for. So I did. The 94 Trooper with 130K miles runs like new with this plug and 8mm wires. It is hard to tell how much power increased when I put them in but it does seem smoother at Idle and accelerates a little better. There are some hills I have to climb that would max out the vehicle at 62 but with these I can reach 68. So something is better. I did change the wires first and they are responsible for about 1/2 the increase. We shall see how these hold up. But for now I am getting a little better power than the BPK5's I had used forever.