| Re: best brand spark plugs to use pulse plugs are a scam. i tried and returned them after one test drive. many others have had them fail, crack, ruin the engine, misfires, etc. just search around the net. took me 30 days to get a refund after finally threatening a credit card chargeback. half the time they dont even answer the phone. performance was worse than $2 ngk copper plugs. |