DENSO

Aprilia RS125 MY08 Although IW01-31 (an equivalent for NGK No. 10) is usually used for racing chamber specification, only a winter season raises the main jet No. 1, and is using IW01-29 (an equivalent for NGK No. 9).

The highest quality products! With a more serious order, I always take various small things in reserve! Excellent store! I always recommend to friends and acquaintances, but they are not always friends with friends and buy Chinese trash!

One of the best!Iridium spark plugs are not the best in terms of performance but nothing can beat their longevity.Denso iridium has smaller center electrode than ngk.I put it on honda c72..Better acceleration and idling become smoother!

I think that it is a two because it is an exchange running 10000 km

Idling I got better.

I think that fuel efficiency has improved.

is.

It is perfect replacement for Yamaha stock CR9E spark plug. This spark plug should have long life and need not to be replaced for many miles to come

YOSHIMURAtmr-mjn, Racing CDI, Hot wire, Exhaust System on SR 400 are riding in Peiton's Norton type Megaphone.
Speaking of the king of Plug, NGK tends to be more popular than DENSO, but Normal plug ? Comparing NGKWindshield IRIDIUM, DENSOWindshield IRIDIUM, the first engine rotation is Smooth.
When NORMAL is set to full throttle, it is good with NGK, but DENSO is the first engine vibration and Exhaust System sound is Mild, it seems to be close to the ideal combustion matching the engine mechanical characteristics of SR.
Fuel consumption has also increased. (Normal tank Regular full Tan and Eco driving 300 km Over)

Also, the electrode of DENSO is thinner and durability is often discussed, but there is no problem at all.
Imagine that the tip of the electrode was thin and the flame kernel with high energy density was generated, Heart also became hot.

If you want to enjoy Doodo Doko Sound at low speed and low rotation Normal plug, I think that it is DENSO if it attacks the pass with high rotation.
In town riding, docokudo sound is Mild compared to NORMAL and NGK, but in order to become NiceMiddle it should be Mild including character and female treatment.

Even SR laver "NGK it is OK!" I think that there are many NGK believers like, but in such a case please reward one by DENSO.
(Just in case, NGK is also a good plug. To the end please understand individual subjective impression. )

It is the second purchase.
Although it is a little expensive, I bought it again because it was OK with a single cylinder 1 pc.
I feel Idling has stabilized, I feel like Power got up ... I felt.

The item i received it good condition and replaced the spark plugs was easy. The shipping was ok not that long of waiting. I would buy the items again when need to change my plug...