Ive read on here that iridium spark plugs give bhp gains. Is this true? Are they really worth nearly £10 each!?
Cheers
Ive read on here that iridium spark plugs give bhp gains. Is this true? Are they really worth nearly £10 each!?
Cheers
big phil noticed a difference on his GSi over 3.5K RPm.....
Any other experience anyone?
Cheers
anyone?
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