Superfire Racing M series plug
Superfire Racing M series plug
Superfire Racing M series plugs
Install new hardware with your new parts. M4x12mm
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-24-2026
Commonly used as a contact close relay for fuel pump
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Also known as the RPM or Impulse sensor
This product was last offered at the strikethrough price on
05-07-2026
Featuring silver fine wire center electrode - Superior ignition ability increases engine power!
Three heat ranges colder than stock with a non-projected tip
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-24-2026
Secures the battery to the tray
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-13-2026
Also known as the RPM or Impulse sensor.
Shut down quickly & remotely - required by many racing organizations
Keep your electrical system working in perfect order
For vehicles with Bosch style alternators
One half of the battery surround
This product was last offered at the strikethrough price on
05-02-2026
The CT5 POWERSPORT (part# 40-339) makes sure you're ready for action every time.
Protects the voltage regulator
For Bosch style alternator
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-24-2026
Shut down quickly & remotely - required by many racing organizations
Stainless steel weld-in nut for any O2 sensor
Seals the connection between the speed sensor and the engine
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
08-24-2026