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      10-20-2014, 05:13 PM   #9
Andrew3424
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Drives: 08 e92 335i
Join Date: Apr 2014
Location: Long island

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Quote:
Originally Posted by tc535i View Post
I should probably pick these up tho. When I bought the car a year ago, I made him replace a failed coil, I'm guessing the others are original. I'll dig in soon and figure out if I should just swap them all out. Maybe I'll just wait till the plugs hit ~10k and do it all then?
People are all over the place with the standard of replacing coils. Spark plugs are a must around 15/20k on a tuned car. There is no standard on coils most say it's pointless to change unless failed or to solve an idealing issue. My personal option is its not gonna do anything but make ur car run smoother. And for less then 200 bucks it's a no brainier for me I have 1 that's been giving me the occasional mis Fire under wot and it just makes sense to replace all then time for a walnut blast then hopefully I will free up some hp maybe ? haha
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