M-12405-35T Ford Performance Plugs

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Joined
May 5, 2019
Posts
16
Reaction score
5
Location
Ocala, Florida
Has anybody used these M-12505-35T and if so what’s did you think? I Know the 542 use to be the plugs but now they are discontinued. Let me know as I have a set on my counter.
 

SRPRACING

Active Member
Joined
May 5, 2019
Posts
90
Reaction score
35
Location
SoCal
Has anybody used these M-12505-35T and if so what’s did you think? I Know the 542 use to be the plugs but now they are discontinued. Let me know as I have a set on my counter.
Ford Pulled a fast one and just grouped the sp-542s into a kit. They’re the same exact plug.
 

Dustan

FRF Supporting Member
Supporting Member
Joined
Dec 10, 2018
Posts
486
Reaction score
640
Location
Boulder Colorado
Wow so Ford decided these plugs were selling so well to the performance world that they are selling them as a set on the Ford performance site. It does list the 17-19 raptors at least
 

Dustan

FRF Supporting Member
Supporting Member
Joined
Dec 10, 2018
Posts
486
Reaction score
640
Location
Boulder Colorado
Installed the original 542 plugs this weekend. I don’t have any numbers but I do feel it smoothed the engine out at idle and made the pedal feel more responsive. Only had 5000 miles on the original plugs. I gapped at .28
 

Donovan

FRF Addict
Joined
Aug 10, 2019
Posts
4,690
Reaction score
4,580
Location
DC
So these plugs do not come pregapped?

Good lord is fking 2019...

This is the best plug for the Gen 2 Raptor right? M-12405-35T
 
Top