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Boyce Boyce is offline
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Default Initial install questions for Veloster N w/PP - 09-23-2021, 04:28 PM

Hi all,

Looking for some guidance RE: spark plugs for a first install of the JB4 on a Veloster N w/Performance Pack.

I will be running map1 and/or map2 as a daily driver with my only other engine related mods being a hi flow air filter in stock box and a hybrid BOV - so basically nothing.
In my area 93 octane is the easiest for me to use and I use it daily.
My only question is with me getting quarterly service at my dealer I plan to remove the JB4 every visit.
Will it be ok to follow the recommendation of using HKS plugs gapped 0.022" to 0.026" EVEN WITHOUT THE JB4 installed for a day or two every few months or would I have to change the plugs back too?
mobdro kodi
If that is an issue and I decide to stick with stock plugs, map1 & 93 octane, should I change the stock gap and to what? Keep in mind it has to run ok for dealer with no JB4 installed.

Thanks in advance for any advice.

Last edited by Boyce; 09-26-2021 at 04:55 AM..
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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 09-25-2021, 03:34 PM

Yes, that gap is fine without the JB4 installed and the upgraded plugs. No need to swap plugs back.



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