My 4.8 loves to hate me - Code P0305, Misfire on cylinder 5. Engine shaking like a quivering purse-dog, but less powerful.

I called around a bit and it looks like Amazon is my best bet. Today's shopping list for ignition plus some odds and ends:

• Bosch ignition coil ($25)
• NGK (4294) IZFR6H11 Laser Iridium Plugs
• K&N Air Filter ($45)
• Castrol 03085 EDGE Extended Performance 10W-30 Synthetic Motor Oil ($26)
• Misc tools and antiseize

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2010 E93 M3 - Le Mans Blue
2010 E70 X5M - Alpine White
2016 F15 40e - Imperial Blue