Denso Iridium Spark Plugs (set of 4)
Item #: ITV20
Price:$49.95
Price: $49.95Sale: $49.95
Denso's Iridium power spark plugs help your vehicle achieve unparalleled performance. It alters the belief that a mere spark plug can add power and mileage. This is done by combining an ultra-fine 0.4mm diameter Iridium center electrode with a tapered cut U-groove ground electrode. Iridium conducts electricity better than platinum, however what makes it exceptional is it's also 6x harder and 8x stronger than platinum. Because of this, the center electrode can be machined down to 0.4mm. This ultra-fine iridium center electrode provides superior ignition performance during acceleration and top cruising RPM. The U-groove ground electrode creates a larger, brighter flame kernel. The tip of the ground electrode has been tapered which further improves firing performance by reducing quenching. All of these features combine to give more horsepower to your motor.
This part is for the following applications:
- Mazdaspeed 3
- Mazdaspeed 6
- Mazda CX-7
I had the ITV20, ran great then had misfire from cylinder 4, replaced faulty coil, then next day misfire in cylinder 2, checked coils and they were good, spark plugs were good too. Didn't know what the problem was, but I decided to get the ITV22 gapped to 0.028 and that fixed the misfire. (Note: I am stock except for hpfp internals). These are great plugs.
These are the best plugs I have ever used
I normally use NGK Spark Plugs for my Mazdaspeed 6, but didnt like the price I paid for them here in New Zealand.
I decided to go for these Denso Plugs, due to the fact that im paying less per plug including shipping, than I did with NGK.
This is the best decision I have ever made on Spark Plugs. My engine is less hesitant than when running NGK plugs, there is also a slight missfire with the NGK plugs. With these Denso Plugs there is no missfire. I will definitely be using these plugs in the future.