Quote:
Originally Posted by TTV8M
i dont remember if you said you changed your spark plugs. Did you change them? If you did, did you replace them with OEM plugs?
Did you measure the gap of the original plugs you pulled out? and did you measure the gap and adjust the new plugs if you installed new?
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I was and am using NGK iridium spark plugs, it was near first thing to replace after mods, I've read they replicate M performance spark plugs, link part# 97506
1-Step Colder BMW N63/S63, & N63TU/S63TU Spark Plugs
Info:
We recommend running these NGK 97506 1-step colder spark plugs on tuned or modified BMW N63 and S63 engines. These spark plugs should be changed every 20,000-30,000 miles on a modded N63/S63.
Old spark plugs were looking as new, I did not measure distance clearance, hm, may be I should swap back to origional part, which is like x2.5 times more expensive - may be this price is not out of nowhere