| Plug Type | Thread Size | Wrench Size | Heat Range | Product Name | Part Number | Retail Price (£+VAT) |
| JIS Type | φ14x19mm | 16mm | NGK7 equivalent | SUPER FIRE RACING M35 | 50003-M35 | £17.05 |
| NGK8 equivalent | SUPER FIRE RACING M40 | 50003-M40 | £17.05 | |||
| NGK9 equivalent | SUPER FIRE RACING M45 | 50003-M45 | £17.05 | |||
| ISO Type | φ14x19mm | 16mm | NGK7 equivalent | SUPER FIRE RACING M35i | 50003-M35-I | £17.05 |
| NGK8 equivalent | SUPER FIRE RACING M40i | 50003-M40-I | £17.05 | |||
| NGK9 equivalent | SUPER FIRE RACING M45i | 50003-M45-I | £17.05 | |||
| G Type | φ14x19mm | 20.8mm | NGK7 equivalent | SUPER FIRE RACING M35G | 50003-M35G | £17.05 |
| NGK8 equivalent | SUPER FIRE RACING M40G | 50003-M40G | £17.05 | |||
| NGK9 equivalent | SUPER FIRE RACING M45G | 50003-M45G | £17.05 | |||
| X Type | φ12x19mm | 16mm | NGK8 equivalent | SUPER FIRE RACING M40X | 50003-M40X | £ENQUIRE |
| NGK9 equivalent | SUPER FIRE RACING M45X | 50003-M45X | £ENQUIRE | |||
| XL Type | φ12x26.5mm | 16mm | NGK8 equivalent | SUPER FIRE RACING M40XL | 50003-M40-XL | £20.35 |
| NGK9 equivalent | SUPER FIRE RACING M45XL | 50003-M45-XL | £20.35 | |||
| Long Reach Type | φ14x26.5mm | 16mm | NGK7 equivalent | SUPER FIRE RACING M35iL | 50003-M35-IL | £17.05 |
| NGK8 equivalent | SUPER FIRE RACING M40iL | 50003-M40-IL | £17.05 | |||
| NGK9 equivalent | SUPER FIRE RACING M45iL | 50003-M45-IL | £17.60 | |||
| HL Type | φ12x26.5mm | 14mm | NGK8 equivalent | SUPER FIRE RACING M40HL | 50003-M40-HL | £20.35 |
| NGK9 equivalent | SUPER FIRE RACING M45HL | 50003-M45-HL | £20.35 | |||
| Mazda Conical Seat Long Reach Type | φ14x25mm | 16mm | NGK7 equivalent | SUPER FIRE RACING M35LF | 50003-M35-LF | £20.35 |
| NGK8 equivalent | SUPER FIRE RACING M40LF | 50003-M40-LF | £20.35 | |||
| RE Type | φ14x12.7mm | 20.8mm | NGK9 equivalent | SUPER FIRE RACING M45RE | 50003-M45RE | £31.35 |
| NGK10 equivalent | SUPER FIRE RACING M50RE | 50003-M50RE | £29.15 | |||
| NGK10.5 equivalent | SUPER FIRE RACING M52RE | 50003-M52RE | £ENQUIRE | |||
| NGK11 equivalent | SUPER FIRE RACING M55RE | 50003-M55RE | £29.15 | |||
| RE Type (RX-8) | φ14x21mm | 20.8mm | NGK9 equivalent | SUPER FIRE RACING M45REL | 50003-M45REL | £43.45 |
| φ14x19mm | NGK11 equivalent | SUPER FIRE RACING M55RET | 50003-M55RET | £43.45 | ||
| *PLEASE CONTACT YOUR LOCAL DEALER FOR SPECIFIC VEHICLE APPLICATION INFORMATION. | ||||||