Plug IK24 Iridium

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if its modded engine, get a IW22 or IW24. if bone stock, better use IW20 for better cold start ignition. the colder the plugs, the worst cold start ignition.
 
Read this term "cold" many times. Pls elaborate.
Thanks.

Plugs have from hot to cold, reference for daily drive are usually 5 and 6, eg. NGK model BPR5ES.
If car is daily drive in town start and stop driving usually using number 5 hot plugs and hard driven or highway use can use number 6, but best still follow car manual recommendation.
If engine is modded with extra horses if not mistaken 50 to 100 bhp increase then can use colder by one number, so if normal is 6 then look for 7.

Why I mention so cold is because IW24 reference to NGK is number 8 cold plugs.....:driver:
 

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