It's a very easy job. The instructions on pelicans website are great. Allow yourself a couple hours which includes clean up. If you are getting misfires already it maybe that you need to replace at least that one plug and coil boot... if not more.

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Olympic Peninsula, WA, USA
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2005 Mini Cooper 100k, British Racing Green/Silver-Black
04/2002 4.6is 140k, Silver/Black-Alcantara *FOR SALE*
1989 325iX 270k, Diamond Black/Black
1984 318i 370k *SOLD* (First Bimmer)
Honorable Mentions: '71 2002, '87 325, '90 325ic, '92 525it, '93 325i, '94 530i