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2017 GT350R spark plug change

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GB17shelbyGT350R

GB17shelbyGT350R

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Any issue getting to any of them, or upon removal? I am approaching 37k on my 2018 and I'm sure it would help me sleep at night to swap them out. Hoping they aren't seized and/or I make a "now the head/engine needs to come out" mistake. I haven't read of any issues like that but curious on your take having done it recently.
All mine came out fairly easy on a cold motor, warming up the engine might help a bit. I had to put a little muscle behind a few plugs in removing and had a few busted knuckles but they all came out 👍🏽.
The one guy who mentioned counterfeit plugs has me thinking about that now. They all looked really good when comparing to my OEM plugs removed. All the electrodes were one piece, logos on the plugs were not super bright as most fraud plugs have darker inked logos. Box design is newer packaging but Overstock Direct was the vendor on Amazon out of MN. So who knows.....I guess I'll find out in due time if they are junk or not. It won't change my driving habits.....but might go to my local Ford dealership to purchase a backup set of SP548 platinum or SP509 Iridiums.
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17GT350

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Are the Platinums what I should put in my car? I see Iridiums. Not sure which ones I should use.
 

robvas

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I would use iridium. They last a long time (100k+)
 

Dr_Cat

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Yes changing plugs on a 911 is an adventure of sorts. Worst is the 991.2 where you take the intercooler plumbing off, the rear bumper and other stuff. Rear wheels too.
Please don't make me nervous...
 

kellyreno

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That's not bad at all. and I always noticed more oil burn whenever I had more engine braking - so spirited driving/track use makes sense. I gotta' drive the dragon some day!
Going again on Friday. Last time I was leading the group, got clocked at 72 MPH at mile marker 10.

tapaco.webp
 

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WItoTX

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Yeah this would suck. I've seen a lot of people online, even questioning buying Ford Motorcraft from Mustang performance websites? I guess if counterfeit is a thing, unless getting them directly from your local Ford dealership, you're taking a risk at any counterfeit? Whether it be spark plugs coils, oil filters, etc? Exactly, sucks that the counterfeiting has went as far as automotive parts for OEM distributors. But I guess that's the world we live in nowadays. Looking at the spark plugs from the Ford local dealership, I would have paid another $10 for all eight, maybe I'll just stop by my local Ford dealership. Grab a handful of extras just in case 👍🏽
Supposedly rock auto has a flawless record with no counterfeit plugs. Chances are you will be just fine though.
 
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GB17shelbyGT350R

GB17shelbyGT350R

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Supposedly rock auto has a flawless record with no counterfeit plugs. Chances are you will be just fine though.
Ordered some Iridiums SP590 from Rock Auto as backups......$67 shipped. Thanks for the referral....I sometimes forget about RockAuto 👊🏽
 
 








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