Denso's Iridium racing 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 listing and price is for a single(1) spark plug. If you wish to purchase more than one of this item, please add the amount in the quantity space provided. Get this and all your JDM at RHDJapan!!
This listing and price is for a single(1) spark plug. If you wish to purchase more than one of this item, please add the amount in the quantity space provided. Get this and all your JDM at RHDJapan!!
Brand: Denso
Product: Iridium Racing Spark Plug - IKH01-31
Part Num.: IKH01-31
SPECIFICATIONS:
Plug Type: ISO (Slant Electrode)
Plug Height: 50.5 mm
Screw Length:26.5 mm
Thread Size: 14 mm
Thread Reach: 26.5 mm
Hex Size: 16 mm
Gap Size: 0.7 mm
Projection: -1 mm
Spark Position: 0.5 mm
Spark Electrode Height: 2 mm
Terminal Shape: Solid
Resistor: 5 kΩ (kilo ohms)
Manufacturer Heat Range (℃): 31
Manufacturer Number: 267700-4470
Equivalent Plugs:
NGK: R7438-10
NISMO: 22401-RS345-10
Product: Iridium Racing Spark Plug - IKH01-31
Part Num.: IKH01-31
SPECIFICATIONS:
Plug Type: ISO (Slant Electrode)
Plug Height: 50.5 mm
Screw Length:26.5 mm
Thread Size: 14 mm
Thread Reach: 26.5 mm
Hex Size: 16 mm
Gap Size: 0.7 mm
Projection: -1 mm
Spark Position: 0.5 mm
Spark Electrode Height: 2 mm
Terminal Shape: Solid
Resistor: 5 kΩ (kilo ohms)
Manufacturer Heat Range (℃): 31
Manufacturer Number: 267700-4470
Equivalent Plugs:
NGK: R7438-10
NISMO: 22401-RS345-10
Compatibility is from maker for JDM cars only. We don't guarantee fitment. Always do your own research before purchase. After-sale support does not include installation support.
Universal
Universal
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Product Reviews
“ THE CUSTOMER'S VOICE ”
RHDJapan Store Reviews
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The quality is typically HKS perfect.The price-performance ratio is very good and there is no other option on the market where you can increase the spring preload. It would be nice if HKS would bring another 40mm version onto the market with a smaller housing. Because it's not that easy to accommodate such a large wastgate in the engine compartment.