Ford Mustang Forum - View Single Post - Spark plugs whats best
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post #6 of (permalink) Old 03-09-2016 Thread Starter
2012bigredstang
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Joined: Dec 2015
Location: Hamilton
Posts: 410
 
Garage
I have 40 000 kilometers on the car
24 000miles
The car runs good
guess I'm leaving them in
but ive heard of leaving them in for a long time then the plug snaps when you try to turn it out

GO BIG OR GO HOME
5.0 coyote
BBK cold air intake
SCT tuner with 91 tune
roush axle back
Go BILLS

91 tune
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