Quote:
Originally Posted by Vegitto-kun
I generally don't know anything about the spark plugs. but I have been wondering would installing "stronger' ones improve the performance?
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No, very likely not. There were major gains with ignition upgrades before cars starting coming with full coil on plug systems... now, you'll really only see any ignition system performance gains if you're running boost (and lots of it).
The stock ignition system, including spark plugs (with dropping 1 heat range), is probably adequate for up to a bar or so of boost.
