BMS Billet Spark Plug Gapper Combo Tool (12/14mm)

Improper spark plug gaps can lower engine performance and reliability. One miscalibrated plug throws off combustion timing across all cylinders killing power, spiking fuel consumption, and risking misfires that could damage catalytic converters and ignition coils. This precision billet combo tool eliminates guesswork. Gap with confidence every single time, protect your investment, and keep your engine running at peak efficiency.

Handles both 14mm and 12mm spark plug thread sizes. 

Optional specialty feeler gauge includes four precision blades (.018mm, .020mm, .022mm, .024mm) for dialed-in accuracy on any application. (Recommended)

Burger Motorsports shipping & returns

• 30-day satisfaction guarantee: BMS tuning products can be returned in like-new condition in their original packaging within 30 days of shipment for a refund.
• Fees: 20% restocking fee on all returns; the customer pays all shipping charges.
• Not returnable: spark plugs that have been installed or gapped, and wheel spacers, lug bolts, lug nuts or wheel studs that have been mounted.
• Express shipping does not guarantee a delivery date. Import duties and taxes are not included in the price.

To start a return or ask a question, contact us with your order number.