NGK (7803) DPR7EIX-9 Iridium IX Spark Plug, Pack of 1

It worked well for my application. I upgraded the OEM copper core NGK plug with this equivalent iridium model. It works well, I find iridium lasts longer than copper and may even provide easier starts and slightly better throttle response. The cost vs the copper plug was negligible. Worth it to me. Your mileage may vary.

Any time I install these in a vehicle, I can feel and hear the engine performing better!

I bought a used 2005 Honda Aero 750 on April 1, 2015 with 13,700 miles on it. I changed the fluids and the plugs and I'll tell you this much about the new NGK Iridium plugs I put in: THEY ROCK!I'm getting better mileage, very fast warm up @ cold start, little to NO backfire when coasting down steep hills...I will always use these plugs from now on. They're worth the extra cost over OEM/Stock plugs. Well worth it. 2 or 3 tanks of gas getting extra mileage pays for them in no time.

Funciona excelente con moto xr 650l

Good product... I think! I personally did not see much of a difference in performance but I must admit, i was not expecting any. I drive a 1700 c.c. Yamaha Road Star so it would be difficult to see a difference given the size and power of the engine.As for this Amazon seller, i would definitely recommend. The product was delivered promptly in excellent condition.

Great plugs to use in any vehicle. The core has a much better performance than usual plugs. Im using this specific plug in my 2003 Suzuki Volusia VL800 motorcycle and get much better better performance & cleaner burning than the factory basic NGK plugs. Cant reccomend them enough.

Iridium Spark plugs are great, and NGK makes some of the best. They do add a little power and mileage, but the reason to use iridium plugs is for their longevity. I found these on Amazon for the best price I could find, and I needed 4 of them (NGK DPR7EIX-9) for my bike (Vulcan 1600). I was comparing prices on Amazon, and found that if I ordered 4 individual, they were a few dollars less than buying a 4-pack, and they had free shipping, the 4-pack didn't. So compare things before you buy.

Wow, I didn't realize it would make such a difference. I have a 2001 Yamaha Road Star Midnight Star. I have typically used your run of the mill, generic plugs. I figured if it sparks an arc, your good... I don't think that any more... I took a chance on these and they are more pricy, but we're talking a few bucks here not hundreds... I immediately saw and heard a difference on idle as I started the bike. I took it for a spin and felt a different throtle responce and general overall performance boost. I am very pleased with these plugs and would HIGHLY recommend you give them a shot.