Parts & Accessories Spare parts Hella spark plugs, used for testing. The car did not accept them. I have a modified Jeep SRT, I changed the Hella ones, but it still misfired and cut off RPM at 4. Whoever is interested, welcome. The spark plugs are original, bought from Babtain Sultan bin Salman. The price is 550, and everyone knows their prices, no need to mention. Please contact by call only.